Independent comparisons. We may earn from shop links. Our editors compare products independently. Some links go to shops, and we may earn a commission. More info
Top pick: ULTCOVER 600D cap, 80 × 80 inch – Highest score in this set: 4.5 from 7,259 reviews, 600D at 4.22 kg, side vents and elastic cords, at about £57.82, with a hard cover still required. Best value: dDanke square PE cover, 200×200×85 cm – Best value: about £21.00, 4.1 from 235 reviews, a light polyethylene cap with a usable 200 cm size line. Wind and rain notes stay in view. Updated October 2026.
UK shops use hot tub cover for two products. The rigid lid is a hinged, lockable foam cover that holds heat. RoSPA and mean that secured lid: a child should not open it alone, and under-fives should not get in. The cover cap is a polyethylene or polyester sheet, about to, over that lid to keep off rain, sun and leaves. These twelve amazon.co.uk listings, saved, are caps plus one inflatable bladder.
How to separate a cap, a bladder and a workshop lid is in the [hot tub cover buying guide](/hub/steam-baths/hot-tub-cover/sub/hot-tub-cover-buying-guide).
The rigid lid is marine vinyl over tapered foam, with lockable straps. These listings do not say they are certified to it. Is a US safety-cover method that lid makers cite.
UK shops use hot tub cover for two products. The rigid lid is a hinged, lockable foam cover that holds heat. RoSPA and mean that secured lid: a child should not open it alone, and under-fives should not get in.
UK shops use hot tub cover for two products. The rigid lid is a hinged, lockable foam cover that holds heat. RoSPA and mean that secured lid: a child should not open it alone, and under-fives should not get in. The cover cap is a polyethylene or polyester sheet, about to, over that lid to keep off rain, sun and leaves. These twelve amazon.co.uk listings, saved, are caps plus one inflatable bladder.
How to separate a cap, a bladder and a workshop lid is in the [hot tub cover buying guide](/hub/steam-baths/hot-tub-cover/sub/hot-tub-cover-buying-guide).
The rigid lid is marine vinyl over tapered foam, with lockable straps. These listings do not say they are certified to it. Is a US safety-cover method that lid makers cite.
UK shops use hot tub cover for two products. The rigid lid is a hinged, lockable foam cover that holds heat. RoSPA and mean that secured lid: a child should not open it alone, and under-fives should not get in. The cover cap is a polyethylene or polyester sheet, about to, over that lid to keep off rain, sun and leaves. These twelve amazon.co.uk listings, saved, are caps plus one inflatable bladder. How to separate a cap, a bladder and a workshop lid is in the hot tub cover buying guide.
The ULTCOVER 80 × 80 inch cap is a 600D polyester sheet at 4.22 kg and £57.82, with side air vents and elastic cords, for tubs up to 80 inches. On amazon.co.uk it is 4.5 from 7,259 reviews, and that same count and review text also sit on the 85 inch listing, so it is one sample. Reviewers put it over an insulated lid to keep rain off the centre seams, and they describe fastenings that come off and go back on. The bullet says it cannot be used by itself without an insulated hard cover underneath. Fading comes up, stitching is described as falling apart after 18 months, and one review says the waterproofing had gone after just over a year. One buyer said a warranty was not honoured after a leak at a few months. It is the top pick in this set because it is the heavier cloth at the lower of the two ULTCOVER prices, and it still needs the lid you already have.
Pros
600D polyester, 4.22 kg, up to 80 × 80 in, at £57.82
Side air vents and elastic cords, with a pull closure on the listing
4.5 from 7,259 reviews, shared with the 85 inch listing
Reviewers fit it over an insulated lid against rain at the seams
Fastenings described as straightforward to remove and refit
Cons
The bullet requires an insulated hard cover underneath
Fading, and stitching failing after about 18 months
Waterproofing gone after just over a year in one review
One review says a warranty was not honoured after an early leak
Best for: You already have a sound insulated lid up to 80 inches and you want a heavier jacket over it.
Less suitable: You need the foam lid itself, a keyed lock, or a cover for a tub wider than 80 inches.
The ULTCOVER 85 × 85 inch cap is the same 600D polyester cloth at 4.67 kg and £60.68, with a size field of 216 × 216 cm. The bullet still says it cannot be used without an insulated hard cover underneath. amazon.co.uk shows 4.5 from 7,259 reviews, and the review text matches the 80 inch listing, so this is not a second set of buyers. Reviewers describe a thick first fit, use over an insulated cover, and fastenings that held through storms in at least one review. The closure field says hook-and-loop, while the bullets also name elastic cords and vents on two sides. The shared complaints travel with it: fading, stitching after 18 months, and waterproofing gone after just over a year. At £2.86 more than the 80 inch cap, you are paying for the larger cut, not for a separate review record.
Pros
Up to 85 × 85 in, size field 216 × 216 cm, 4.67 kg, at £60.68
600D with a waterproof backing, side vents, and elastic cords in the bullets
Shared 4.5 from 7,259 with the 80 inch listing
Reviewers describe a thick cloth over an existing insulated cover
Cons
The bullet still requires a hard cover underneath
£2.86 more than the 80 inch ULTCOVER for the same review line
The same fade and seam complaints sit in that shared text
Hook-and-loop in the field and elastic cords in the bullets
Best for: Your existing lid is larger than 80 inches and still within 85 inches, and you want a cap rather than a new lid.
Less suitable: You want a review sample that is not copied from the 80 inch listing, or you have no hard cover.
The YUJHON cover is listed at 215 × 215 × 90 cm for spas up to 210 × 210 × 90 cm, at 2 kg and £59.99. The style field says No Insulation. The bullet says 170G polyethylene and the material field says polyester, so the cloth is not one answer on the page. On amazon.co.uk it is 4.5 from 69 reviews. Reviewers praise the fit on a Wellis tub, elastic at the corners, and a cover they call thick, and one buyer reported a lower winter electricity bill, which is that household's figure. A pictured flap was missing for one buyer, and another said the material did not match the photos. A larger size swamped a 205 × 205 cm tub. The score matches the ULTCOVER caps, and the review count is 69 rather than 7,259.
Pros
215 × 215 × 90 cm for spas up to 210 cm, at £59.99 and 2 kg
4.5 from 69 reviews, including a Wellis fit
Wind belt claimed, with hook-and-loop and a zip on the closure field
Reviewers call it thick and say it keeps the tub clean
Cons
The style field says No Insulation
Polyethylene in the bullet and polyester in the material field
The pictured flap was absent in one review
The next size up was too roomy on a 205 cm tub
Best for: You want a silver cap slightly larger than a spa up to 210 cm, and you will not treat the style field as an insulation claim.
Less suitable: You need a stated foam core, a storage bag the bullets do not list, or the larger ULTCOVER review sample.
The Gemsaya round cover is titled 200 × 72 cm for a 4 person tub, in 420D Oxford with a PU lining, at £29.99, with a buckle and a hem string. The item weight field says 100 g, which the listing does not reconcile with a cover of that size. amazon.co.uk shows 4.3 from 39 reviews. Several texts in that set are not from the United Kingdom, so the comments here are the UK ones. Those reviewers praise the belt, a bottom drawstring, and a fit that replaced a board they had been putting on the tub. One UK review says the photo looks thick, the cover received is really thin, and a hook arrived broken. The title says thermal, and no foam is stated. A storage bag is asked on the listing and not confirmed in the bullets.
Pros
200 × 72 cm, 420D Oxford with a PU lining, at £29.99
Buckle and a hem string, with a belt mentioned in reviews
4.3 from 39 reviews
UK reviews praise the midline strap and the room in the fit
Cons
The item weight is printed as 100 g
One UK review calls the cloth really thin, with a broken hook
That review says the photograph and the cover do not match
A storage bag is asked and not confirmed in the bullets
Best for: You have measured a round tub near 200 cm across and 72 cm of drop, and you can set the 100 g weight field aside.
Less suitable: You treat the photograph as a thickness guarantee, or you need more than 39 ratings before you buy.
The dDanke square cover is a polyethylene cap at £21.00 and 1.01 kg, titled 200 × 200 × 85 cm, with a drawstring and spring stoppers claimed in the bullet. On amazon.co.uk it is 4.1 from 235 reviews. Some reviewers say it held heavy rain and sun, looked thick next to cheaper covers, and kept rain out through a winter after dearer covers had leaked. Others say it stays loose with the cord pulled, lifts in the wind, and that rain left a pool underneath after three weeks. A true 2 m tub had no spare in the cloth, and that buyer called the measurement their own error. The same bullet also names 220 cm and 240 cm sizes. It is the best value here: the lowest-priced weather cap in the set with a usable size line and more than 200 reviews, with those wind and leak notes left in view.
Pros
£21.00, 1.01 kg, title size 200 × 200 × 85 cm
4.1 from 235 reviews
Drawstring, with spring stoppers claimed in the bullet
Some reviewers report a dry winter after other covers had leaked
Called thick next to cheaper sheets
Cons
Loose in the wind even with the drawstring pulled
Rain pooled underneath after three weeks in one review
No spare on an exact 2 m tub
One bullet also names 220 cm and 240 cm
Best for: You want a cheap square polyethylene jacket around 200 cm and you will still tie it down in wind.
Less suitable: You need a lockable lid, a sheet the reviews agree is waterproof, or a true 2 m tub with no overlap to spare.
The GIONAR round cover is titled 190 × 70 cm for 4 people, in woven polyethylene at 850 g and £24.99. The closure field says drawstring and a bullet also says buckle straps. The size field says 5 cm, which cannot be this cover. amazon.co.uk shows 4.1 from 181 reviews, and the same count is on the 215 cm polyethylene GIONAR, so the two listings are not two samples. Reviewers call the fit good, and one uses it only as an indoor winter dust cover on a Lay-Z-Spa Miami. Others say rain went straight through and that it covers the Miami tub but not the heater and pump beside it. One review describes a thin extra layer, like a pack-a-mac, over the original cover. Insulation is not established in those notes.
Pros
Title size 190 × 70 cm, 850 g, at £24.99
4.1 from 181 reviews, shared with the 215 cm polyethylene GIONAR
Fit praised, including a jacuzzi and a Miami used indoors as a dust cover
The bullet says it folds
Cons
The size field of 5 cm conflicts with the title
Rain through the cloth in the reviews
Does not cover the heater and pump on a Lay-Z-Spa Miami
Drawstring in the field and buckle straps in the bullet
Best for: You have measured a round tub near 190 cm and you want a light extra layer, including as an indoor dust cover.
Less suitable: You need the external pump covered, a waterproof barrier, or a size field you can use without the title.
The grey GIONAR polyethylene cover is titled 215 × 70 cm at 610 g and £25.99, sold as a 6 person cover. The closure field says drawstring and a bullet also names buckle straps. The star line is 4.1 from 181, the same count as the 190 cm polyethylene GIONAR, and the early reviews overlap. Reviewers mention a good fit on a Cotswold tub, and one Zurich owner said it held temperature and stayed dry with the drawstring. The same complaints appear: rain straight through, little benefit beyond shade, and a Lay-Z-Spa Miami pump left outside the cloth. The bullet calls it a sun shield, which is a listing claim rather than a measured test. At 610 g it is lighter than the 190 cm GIONAR's 850 g, on a larger stated diameter.
Pros
215 × 70 cm, 610 g woven polyethylene, at £25.99
Drawstring on the field, with buckle straps also in the bullet
Reviews cite a Cotswold fit and one Zurich account of a dry tub
The bullet says it folds
Cons
The 181 reviews are shared with the 190 cm polyethylene listing
Rain through the cloth
A Miami pump left uncovered
The sun-shield line is a bullet, not a measured result
Best for: You have a round tub near 215 cm and you want a light grey polyethylene layer over a cover you already trust.
Less suitable: You want a separate review sample, a waterproof sheet, or the pump housing under the same cloth.
The SHATCHI BL00200 is a PVC bladder about 160 cm across, listed for round tubs up to 173 cm, at 1.88 kg and £18.99. It floats on the water. The bullets describe an inflation valve and do not say a pump is in the box. On amazon.co.uk it is 4.0 from 608 reviews. Reviewers use it as a replacement lid on a Lay-Z-Spa Paris and a Miami, and one Wave Tahoe owner says it helps keep the water warm while it is floating. Several say it loses most of its air within 4–5 days or needs pumping each week, and one first unit had a hole and was replaced within two days. One review says it will not keep rain from pooling on top, because it sits in the water rather than over the rim. A buyer called it a little small, and that review said other sizes were not offered.
Pros
About 160 cm, with a claim of tubs up to 173 cm, at £18.99
4.0 from 608 reviews
Used on a Lay-Z-Spa Paris and a Miami, and floated on a Wave Tahoe
It folds once it is deflated
A holed first unit was replaced within two days in one review
Cons
Loses air within days, and weekly pumping comes up in the reviews
Does not stop rain pooling on top
A pump is not stated in the bullets
Called a little small for some tubs inside the 173 cm claim
Best for: You want a floating lid on a round inflatable near 160–173 cm, and you will reinflate it.
Less suitable: You need a rain roof, a lock, or a cover that stays inflated for a fortnight.
The Rocita square cover is titled 218 × 218 × 90 cm in 210D polyester with a vinyl backing, at 820 g and £25.99, with a drawstring, side vents and elastic cords. The bullets also list 231 cm and 244 cm sizes. amazon.co.uk shows 3.9 from 142 reviews. Short reviews call the fit good and water resistant, and some buyers use it over winter or to shield an existing top cover from sun and birds. Others say it is as thin as newspaper, not waterproof, ribbed in the first wind, and that an extra strap was still needed. One review says it leaks after a while and falls onto the water, so the cloth sits in the tub. The bullets do not require a hard cover, while the reviews often describe it as a layer over one.
Pros
218 × 218 × 90 cm, 210D with a vinyl backing, 820 g, at £25.99
Drawstring, elastic cords and vents on two sides
3.9 from 142 reviews
Used over an existing top cover against sun and birds
Cons
The heavy-duty label is disputed, and one review calls it thin as newspaper
Not waterproof in several reviews
An extra strap was still needed in one review
Larger sizes are named in the same bullets
Best for: You want a light square sheet over a cover you already have, around 218 cm, and you will add a strap in wind.
Less suitable: You need this cloth to be the waterproof lid, or you take the heavy-duty line without the reviews.
The GIONAR 420D round cover is titled 215 × 70 cm at 980 g and £26.99, in woven polyethylene with a buckle. The bullet says it suits most tubs of 210 cm and under 215 cm, with 1–2 cm of sewing tolerance. amazon.co.uk shows 3.8 from 120 reviews, and that count is shared with the 190 cm 420D listing. Reviewers use it as a thin extra layer with a metallic inside, including over a CleverSpa blanket on a Honolulu Lay-Z-Spa, and one owner likes the toggle because of cats. Several say it is not waterproof and not insulative, and that the silver lining is not reflective. One review says it split while being pulled onto a Lay-Z-Spa Vegas. Rain reached a thermal cover underneath in the notes.
Pros
215 × 70 cm, 420D polyethylene, 980 g, at £26.99
Buckle and a hem string, with 1–2 cm tolerance in the bullet
A toggle noted by an owner worried about cats on the water
Used over a blanket on a Honolulu Lay-Z-Spa
Cons
3.8 from 120 reviews, shared with the 190 cm 420D listing
Not waterproof in several reviews
Split while being forced onto a Lay-Z-Spa Vegas
A review calls it not insulative
Best for: You have a round tub under 215 cm, you already have a blanket or lid, and you want a thin outer layer.
Less suitable: You will stretch it onto a Vegas that a review says it split on, or you want this cloth to be the insulation.
The black GIONAR 420D cover is titled 190 × 70 cm at 830 g and £25.99, with a buckle, sold as a 4 person cover. The star line is 3.8 from 120, the same count and overlapping text as the 215 cm 420D listing. Reviewers describe a thin cover with a metallic inside over a blanket on a Lay-Z-Spa, and one calls it waterproof and useful in rain. Several others say water goes through, that it is not insulative, and that water seeped onto an outer thermal cover. A split while forcing cloth onto a Lay-Z-Spa Vegas sits in this shared review set, even though this title is the 190 cm size. The listing asks about a storage bag, and the bullets do not include one. You are looking at the smaller cut of a cloth the reviews already argue about.
Pros
190 × 70 cm, 420D polyethylene, 830 g, at £25.99
Buckle fastening
Used over a CleverSpa blanket on a Honolulu Lay-Z-Spa
One review calls it waterproof in rain
Cons
The 3.8 from 120 is shared with the 215 cm 420D listing
Several reviews say rain goes through
The silver lining is called not reflective
The Vegas split sits in the shared review text
Best for: You want a 190 cm black 420D layer over a blanket you already use, and you have checked the diameter.
Less suitable: You need a waterproof barrier, a bag the bullets do not list, or a review set that is not shared with the 215 cm page.
The title and the size field say 190 cm round with a 70 cm drop, sold as a 4 person cover.
Does the listing include a storage bag?
The listing asks. The bullets do not say a bag is included.
What do the reviews say about water?
Several say it is not waterproof and that rain reached a thermal cover underneath. One review calls it waterproof. The count matches the other 420D GIONAR listing.
The WGFOIP square cover is titled 210 × 210 × 30 cm in 190 silver-coated polyester taffeta, at £26.49. The bullet weight is 528 g and the item weight is 439 g. The item dimensions say 23 × 6 cm, which conflicts with the title, and the number-of-items field says 2 while the title reads as one cover. amazon.co.uk shows 1.0 from 1 review. That review calls it a waste of money and very flimsy, and says it does not tighten, so something else was needed on top. Nothing on the listing praises it. The bullet claims rain, snow, sun, wind and dust, and also says the cloth is breathable. With one review and two size lines, the page does not give you a cover you can order from the dimensions alone.
Pros
The title and the size field both say 210 × 210 × 30 cm, at £26.49
The bullet names 190 silver-coated polyester taffeta
The bullet says the cover folds
Cons
1.0 from 1 review: flimsy, and the hem will not tighten
Item dimensions of 23 × 6 cm conflict with the title
439 g in the item field and 528 g in the bullet
The number-of-items field says 2 and the title reads as one cover
Best for: You are comparing the £26.49 price only, and you will not order until the 23 × 6 cm field is explained.
Less suitable: You need a cover this week, a stated fastening, or any review that says the hem holds.
The title and size field say 210×210×30 cm. The item dimensions say 23×6 cm. The bullet weight is 528 g and the item weight is 439 g.
How many reviews are on the listing?
One. It calls the cover flimsy and says it does not tighten, so something else was needed on top.
Does the listing say how many are in the box?
The number-of-items field says 2. The title reads as one cover. The listing does not explain the 2.
How we compared
Twelve amazon.co.uk listings, saved on 19 October 2026, were scored from 0 to 100. This is not a laboratory test. None of these listings is a lockable foam lid or a BS EN 17125 safety cover. The top pick is the highest score, once. Best value is the cap that still has a usable review sample and a coherent size line, after the hard-cover requirement is noted. Shared review lines are not added across ASINs. In sentences this page says top pick and best value.
1
Amazon evidence
25%
Star rating and review count on amazon.co.uk. Shared review lines (ULTCOVER 7,259; paired GIONAR 181 and 120) are not added across ASINs. One review scores low. WGFOIP at 1.0 from 1 is treated as unusable evidence for cloth quality.
2
Listing fit
35%
Cover type stated, size figures that can be checked against a tape measure, fastening named, and an honest hard-cover bullet where the cap needs a lid underneath. Absurd size fields (5 cm, 23×6 cm, 100 g on a 2 m cover) lose points.
3
Review outcome
25%
UK-facing complaints about wind, rain through thin cloth, seam failure after 12–18 months, air loss on the bladder, or a split while pulling on count against the headline waterproof claim.
4
Value
15%
Shelf price in GBP against the job the class can do. A £21 sheet is not scored as equal to a 4.2 kg 600D cap when the reader still needs a sound hard lid.
Independent review
Last updated: October 2026
8 sources checked
Hot tub cover buying guide
Choose the job before the denier. Children or pets near the water need a solid lockable hard cover whenever the tub is unused. A cap is the buy when that lid still locks, feels light and sits flat. These twelve amazon.co.uk listings, saved on 19 October 2026, are caps and one floating bladder, from about £18.99 to about £60.68. None is a workshop marine-vinyl lid. What you can check is a size a tape can confirm, a fastening at the hem, and reviews that record wind, leaks and seam splits.
What is a hot tub cover?
A hot tub cover in UK shops is one of two products, and the name on the listing does not say which. The rigid lid is marine vinyl over tapered foam, with lockable straps. Hot Tubs UK quotes foam at 25 kg/m³ and a replacement lid from £495. That figure is a workshop page, not an amazon.co.uk price, and none of the twelve ASINs here is that lid. UK workshops cite BS EN 17125. These listings do not say they are certified to it. ASTM F1346-91 is a US safety-cover method that lid makers cite.
Best for
Owners with a sound hard lid who want a rain and UV jacket and will measure first
Owners of round inflatable spas who will match the diameter and the external pump
Not ideal for
Households where children can reach the water and the only cover would be a drawstring sheet
A lid that is already heavy, sagging or cracked
Mistakes to avoid
1
Treating a cap as the lockable lid
A polyethylene or polyester sheet keeps weather off a lid. It does not lock, and it is not what RoSPA or BISHTA mean by a secured tub. ULTCOVER's own bullet says the cap needs an insulated hard cover underneath. If children can reach the water, the purchase is the hard cover.
2
Measuring the cabinet, or trusting the person-count
Measure the shell at the widest point, both ways, and for a cap measure over the lid including the drop. A warped old cover is a poor template. A 4-person or 6-person line is not a diameter. A round cap that misses the external pump leaves the heater in the rain, which is what a Lay-Z-Spa Miami review describes.
3
One dry week, or weight piled on a foam lid
A dry week is not a waterproof test. Denier is cloth weight. Reviews on the lighter caps report rain through the cloth, and the Shatchi floats so rain can sit on top. On a foam lid, water in the core can take the weight past 110 kg, which is the Covers for Tubs figure. Strap the lid. Do not load the middle in a storm.
What to weigh up
Job, class and size
High
Children or pets near the water need a solid lockable hard cover whenever the tub is unused. A drawstring sheet is not that cover. RoSPA says a child should not open it alone, and under-fives should not enter. BISHTA's line is under-fours. RLSS UK records three children drowned in uncovered hot tubs in 2022–2023.
Buy a cap only if the hard cover still locks, feels light and sits flat. Buy a new rigid lid if the old one is heavy, sagging or cracked.
Cloth, reviews and price
High
Fastening is a hem cord, a buckle, or hook-and-loop. Denier is cloth weight, not a waterproof test. The 600D ULTCOVER caps weigh 4.22 kg and 4.67 kg, and the bullets still require a hard cover. Several polyethylene caps weigh under 1 kg. The YUJHON style field says No Insulation, and the cloth lines disagree. The Shatchi is a PVC bladder that floats.
Which option suits you?
Three typical situations, each with a recommendation from this comparison.
🌧️
A sound lid that needs a jacket
You already have a hard cover that locks, feels light and sits flat, and you want rain and sun off the vinyl. The ULTCOVER 80 inch cap at about £57.82 is the top pick: 600D, 4.22 kg, side vents and elastic cords, 4.5 from 7,259 reviews. The bullet still requires an insulated hard cover underneath. The 7,259 count is shared with the 85 inch listing.
You want a light square sheet around 200 cm and you will still tie it down in wind. The dDanke at about £21.00 is the best value: 1.01 kg, title size 200×200×85 cm, drawstring, 4.1 from 235 reviews. Some reviewers report a dry winter. Others report a loose fit and rain that pooled underneath. It is a jacket, not the lockable lid.
You have a round inflatable near 160–173 cm and you want a bladder on the water, not a hood over a foam lid. The Shatchi at about £18.99 is about 160 cm, 1.88 kg PVC, 4.0 from 608 reviews. Reviews report air loss within days and rain on top. A pump is not in the bullets. Match the diameter and the external pump before you treat a round cap as the same job.
The top pick is the ULTCOVER 80 × 80 inch 600D cap at about £57.82. It carries the single top award: 4.5 from 7,259 amazon.co.uk reviews, 4.22 kg, side vents and elastic cords. The same 7,259 count sits on the 85 inch ULTCOVER, so those two listings are one sample. The YUJHON also scores 90, from 69 reviews. The bullet still says the cap needs an insulated hard cover underneath.
Which hot tub cover is the best value?
The best value is the dDanke square polyethylene cap at about £21.00. It is the lowest-priced weather cap here with a usable size line and more than 200 reviews: 4.1 from 235, title size 200×200×85 cm, 1.01 kg, and a drawstring. Some reviewers report a dry winter. Others report a loose fit in wind and rain that pooled underneath after three weeks. The same bullet also names 220 cm and 240 cm.
How much does a hot tub cover cost on amazon.co.uk?
In this set, saved on 19 October 2026, shelf prices run from about £18.99 to about £60.68. The Shatchi is about £18.99 and the dDanke about £21.00. GIONAR, Rocita, WGFOIP and Gemsaya sit from about £24.99 to about £29.99. Both ULTCOVER caps and the YUJHON are about £57.82 to £60.68, and they are still caps. Hot Tubs UK lists a rigid lid from £495, which is a workshop price, not an amazon.co.uk price here.
Is a cover cap a safety cover?
A drawstring sheet here is a weather cap, not a child-safety cover. RoSPA says the cover should lock so a child cannot open it alone, and that under-fives should not enter. BISHTA's line is under-fours. RLSS UK says three children drowned in uncovered hot tubs in 2022–2023. None of these twelve listings is a lockable foam lid, and none states an EN 17125 test. If children or pets can reach the water, the purchase is a solid lockable hard cover.
How do you measure for a hot tub cover?
Measure the shell at the widest point, both ways. For a cap, measure over the lid, including the drop. Slightly large beats too small. On a rigid lid, round a corner radius down. Ignore the person-count until the centimetres match, and check that a round cap clears the pump. Prefer the title when a size field is absurd: one GIONAR is 190×70 cm and also 5 cm, and the WGFOIP is 210×210×30 cm and also 23×6 cm. Do not average those figures.
What do the reviews say about wind and rain?
Denier is cloth weight, not a waterproof test. The 600D ULTCOVER caps weigh 4.22 kg and 4.67 kg. Several polyethylene caps weigh under 1 kg. dDanke reviews include a loose fit in wind and rain that pooled underneath. GIONAR reviews say rain went through the cloth. The Shatchi floats, and reviews report air loss within a few days. Covers for Tubs says water in the foam can take a lid past 110 kg. Strap the lid, and do not pile weight in the middle.
When is the purchase the tub, not the cover?
This page compares covers for a tub you already have. If you still need the spa, the hot tub comparison is the separate table. A cap assumes a lid. The Shatchi is a bladder for a round inflatable. A lid that is heavy, sagging or cracked needs a workshop lid, not a sheet of about £25. Get help if the lid is too heavy to lift or the tub is hired out. If someone is hurt, that is an emergency.
Our verdict
The top pick is the ULTCOVER 80 × 80 inch 600D cap at about £57.82. Three listings score 90. The award sits on this one: 4.5 from 7,259 reviews, 4.22 kg, and a bullet that still requires an insulated hard cover. The 85 inch ULTCOVER shares that review line at about £60.68. The YUJHON also scores 90, from 69 reviews, and its style field says No Insulation. The best value is the dDanke at about £21.00, 4.1 from 235 reviews, a light polyethylene cap with wind and rain complaints left in view. None of these scores is a laboratory test, and none of these listings is a lockable safety cover.
Best overall
ULTCOVER 600D cap, 80 × 80 inch
Highest score in this set: 4.5 from 7,259 reviews, 600D at 4.22 kg, side vents and elastic cords, at about £57.82, with a hard cover still required.
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Updated: October 2026
8 sources checked
Guides to Hot tub covers
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources used for this comparison. Listing prices, stars and review counts are the amazon.co.uk figures saved for this set on 19 October 2026.
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are the UK listing lines saved on 19 October 2026. We did not run a lab test.