Bestway filter pump size for your above-ground pool

Updated: 21 October 2026

You know the pool’s litres, and the Bestway titles on amazon.co.uk still lead with gallons per hour.

You know the pool’s litres, and the Bestway titles on amazon.co.uk still lead with gallons per hour. That is how a Bestway filter pump size goes wrong: the title is pump flow, and a 32 mm pump in this set will not fit a 38 mm hose. Size from litres, then cartridge or sand, then the fitting, and only then the price in pounds. The Bestway filter pump comparison holds the five rows, with shelf prices from 19 October 2026. You should finish knowing which printed range you are actually buying against. A qualifying purchase can earn a commission at no extra cost to you.

Our top picks

Badge	Product	Stated pool size	Stated flow	Hose	Note	Price	Offer
Best overall	Bestway Bestway 58383 cartridge filter pump	1,100–8,300 L and 14,300 L	2,006 L/h pump; 1,817 L/h system	Two 32 mm hoses	7.6	about £49.99	View offer
Best value	Bestway Bestway 58381 cartridge filter pump	1,100–8,300 L	1,249 L/h pump	32 mm, no 38 mm	7.4	about £37.49	View offer
Alternative	Bestway Bestway 58389 cartridge filter pump	1,100–31,700 L	5,678 L/h system	Adaptors; 38 mm line conflicts	6.6	about £133.92	View offer

Best overall

Bestway Bestway 58383 cartridge filter pump

7.6/10about £49.99

View offer

Best value

Bestway Bestway 58381 cartridge filter pump

7.4/10about £37.49

View offer

Alternative

Bestway Bestway 58389 cartridge filter pump

6.6/10about £133.92

View offer

On this page

1.Turn pool litres into a six-hour flow
2.Cartridge pumps in this set
3.Sand pumps when the listing is in gallons
4.What to ignore on the listing

Turn pool litres into a six-hour flow

Bestway’s UK sizing guide says the pump should pass the pool volume in about six hours. Required litres per hour equals pool litres divided by six. That sum is a rule of thumb from Bestway’s guide, not a lab turnover test. Eight hours in a manual is run time, not the sizing test. At 8,300 litres the six-hour sum is about 1,383 L/h. At 1,100 litres it is about 183 L/h. Use system flow when the listing prints it. If the page never prints it, do not borrow a figure and treat it as Amazon’s. Avant Garde’s about 1,060 L/h for a 330 gal pump is not on the 58381 listing, so leave it off the order.

Cartridge pumps in this set

Three cartridges state 220–240 V. The 58381, B0CDXX79F7, is £37.49, with 1,249 L/h and 16 W for 1,100–8,300 litres. System flow is not stated. There is no adaptor, and it cannot connect to a 38 mm hose. It names a Type I cartridge, 58093, without saying one is in the box. At 8,300 litres the six-hour sum is about 1,383 L/h, above that 1,249 L/h bullet. The 58383, B0CDXTLDD9, is £49.99, with pump flow of 2,006 L/h and system flow of 1,817 L/h at 29 W, and a bullet that says it has a UK plug. Two 32 mm hoses are included. It still cannot take a 38 mm hose. 1,817 L/h covers about 10,900 litres in six hours, which clears 8,300 litres and misses 14,300 litres (about 2,383 L/h). The title says a Type II cartridge, 58094, is included. The 58389, B0CDXRX6WS, is £133.92, with 5,678 L/h described as system flow for 1,100–31,700 litres. Adaptors are included, yet the same line also says 38 mm valves only. The plug type is not stated. Media, as opposed to size, is the cartridge versus sand page.

Testsieger

Bestway Bestway 58383 cartridge filter pump

7.6/10about £49.99

View offer

Sand pumps when the listing is in gallons

These two pages never print litres, so the six-hour sum cannot be finished from the listing. The £156.47 pump, B0DGMHBGZF, states 950 GPH for 300–4,800 gallon pools. The £305.07 pump, B0DD1K3SJT, states 2,200 GPH for 300–11,200 gallons. Sand is not in either box. Bestway names silica #20, 0.45–0.85 mm, or Polysphere balls, which must not be backwashed. Neither listing states voltage or a plug.

What to ignore on the listing

On the 58381 the attribute line says 330 gallons per minute, and the bullet says 1,249 L/h (330 gal/h). Use the bullet. On the 58383 the attribute line says battery powered and 11 g, while the included-components line says a 220–240 V, 29 W pump and the unit count is 3,000 g. Use the included-components line. The 3.8 from 421 reviews is one block on all three cartridge ASINs, not three UK tests. Sand stars sit on review bodies marked United States. They do not make the plug British. Saltwater is asked and never answered.

Common questions

How do I turn pool litres into a Bestway pump size?

Divide the pool’s litres by six. Bestway UK treats that as the flow to pass in about six hours. At 8,300 litres, the top of the 58381 range, the sum is about 1,383 L/h. At 1,100 litres it is about 183 L/h. Use system flow when the listing prints it, because the gallons-per-hour title is the higher pump-flow number. The sand pages here state gallons, not litres, so the sum cannot be finished from those listings alone.

Is the 58381 enough for 1,100–8,300 litres?

The listing states that range, at £37.49, 16 W and 220–240 V, with no adaptor and no 38 mm connection. At 1,100 litres the six-hour sum is comfortable. At 8,300 litres it is about 1,383 L/h, and the bullet states 1,249 L/h of pump flow, with system flow absent. It can suit a small pool with a matching hose. It is a weaker match at the top of that range, or if the wall fitting is 38 mm.

Why does the 58383 listing print two pool ranges?

One bullet says 1,100–14,300 litres and another says 1,100–8,300 litres. Both were on the amazon.co.uk page on 19 October 2026. System flow of 1,817 L/h covers the lower cap on a six-hour sum and does not cover 14,300 litres, which wants about 2,383 L/h. Buy against the range you have checked, not against the larger line simply because it is also printed.

When do I need the 58389 and its adaptors?

You look at it when the pool is above the 8,300 litre band, up toward 31,700 litres, or when the valves are 38 mm and the smaller pumps exclude that hose. It is £133.92, states 220–240 V and 86 W, and includes adaptors, although one sentence limits it to 1.5 in / 38 mm threaded valves. The plug type is not stated, so the adaptors do not settle the electrical question.

Do the sand pumps state litres or voltage?

No. They stay in gallons: 950 GPH for 300–4,800 gallons at £156.47, and 2,200 GPH for 300–11,200 gallons at £305.07. Voltage and plug are not stated, and sand is not in the box. A blank voltage field is not a UK plug. Whether 950 GPH suits the gallon range is a separate question from whether you can connect it to a UK socket.

Best Bestway filter pump

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