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Gas BBQ hose and regulator: match the bottle

Updated: 23 October 2026

The cart is on the patio and the box has a grate, a manual, and no hose. A gas BBQ hose and regulator is the part most of these amazon.co.uk listings leave for you to buy, and the part you can get dangerously wrong if you match it to the picture instead of the bottle. The [Gas BBQ comparison](/hub/grills-and-barbecues/gas-bbq) table only says included or not. This page separates 37 mbar propane, 28–30 mbar butane, and the cartridge grills that take neither. A patio-gas bottle, a propane cylinder, a butane clip, a Campingaz cartridge, and a Weber Q are five different connections. Updated 23 October 2026. We did not lab-test these barbecues.

The cart is on the patio and the box has a grate, a manual, and no hose.

Our top picks

Weber Weber Q 1200N with stand

Best overall

Weber Weber Q 1200N with stand
10.0/10about £389.00
View offer
Campingaz Campingaz Party Grill 400

Best value

Campingaz Campingaz Party Grill 400
9.2/10about £96.01
View offer
CosmoGrill CosmoGrill Emberr 6+1

Alternative

CosmoGrill CosmoGrill Emberr 6+1
8.0/10about £279.99
View offer
On this page
  1. 1.What the box in this set actually contains
  2. 2.37 mbar, 28–30 mbar, and the clip
  3. 3.Cartridge grills are a different system
  4. 4.If the joint bubbles or the side burner smells

What the box in this set actually contains

A missing hose is normal in this folder. The CosmoGrill Emberr 6+1, about £279.99, is the garden cart whose included line names a propane hose and regulator. That still has to match your valve. Campfire and TOV bullets say the hose is not included. The Original, the Pro Deluxe 4+1, both 6+1 CosmoGrill rows, and the BROILUCK do not name a hose on the included line. A bullet that mentions a regulator is not the included-components line. onlyfire also prints 30 MPA. That is not 30 mbar. Read the data plate, then buy the regulator for that pressure and your valve. Liquid Gas UK’s consumer sheet is the plain version: match the cylinder valve, and do not force a connector.

37 mbar, 28–30 mbar, and the clip

UK propane in this class is typically 37 mbar. Butane is typically 28–30 mbar. Patio gas is 37 mbar propane on a 27 mm clip-on. A POL screw-on is also 37 mbar and a different thread. In Great Britain the common butane clip is about 21 mm. In Northern Ireland it is the 35 mm jumbo clip. If you own butane, you need 28–30 mbar on that clip, and a plate that allows butane. The Emberr’s propane hose is the wrong spare if your bottle is butane.
Weber Weber Q 1200N with stand

Testsieger

Weber Weber Q 1200N with stand
10.0/10about £389.00
View offer

Cartridge grills are a different system

The Weber Q 1200N, model 1501084 on Weber’s UK page, is an EN 417 cartridge grill at cartridge pressure, not 37 mbar. The included line does not name a cartridge or a hose. Forcing a patio clip onto the Q is the mistake this page exists to prevent. It is one burner, 2.93 kW, and 1,290 cm². The Campingaz Party Grill 400 names a CV 470 or an R907. One UK review says the cartridge was not in the box. An R907 needs the Campingaz regulator. Who each cart is for, once the fitting is settled, is on best gas BBQ.

If the joint bubbles or the side burner smells

Fit the regulator by hand the way the manufacturer shows. If it does not click or screw on squarely, it is the wrong clip. With the knobs off, open the cylinder slowly and soap-test every joint, including the side-burner hose. Bubbles mean the cylinder goes off. Tighten once if the fitting is correct and loose. If bubbles return, replace the hose or the regulator. A gas smell at the TOV side burner, which UK reviews describe, is that stop. Change cylinders outdoors, with the barbecue cold. Do not store the cylinder under the burners while you cook. A freestanding hose is yours to choose and test. A fixed gas pipe is Gas Safe work. When the soap test is clean, lighting with the lid open is on how to use a gas barbecue. Take a photo of the valve and the millibar figure to the shop if you are unsure.

Common questions

Why is there no hose in the box?
One hose cannot fit patio gas, POL propane, butane, and a Campingaz cylinder, and many sellers leave the choice to you. In this set only the Emberr included line names a propane hose and regulator. Campfire and TOV say the hose is not included. Budget for the regulator that matches the valve you have.
What regulator do I need for Calor patio gas?
Patio gas uses a 27 mm clip-on at 37 mbar propane. The regulator should be marked for that pressure and, on a current model, to BS EN 16129. The hose should meet BS 3212 type 2 or BS EN 1763 class B. That fitting does not go on the Weber Q, and it is not the 21 mm butane clip.
Can I use butane on the same regulator as propane?
No. Butane is typically 28–30 mbar, and the clip is not the 27 mm patio clip. Propane is 37 mbar. Forcing the connector still gives the wrong pressure. The TOV listing mentions both gases. Follow the plate on your barbecue.
What is 37 mbar?
It is the usual supply pressure for UK propane barbecues and for patio gas, after the regulator. It is not a heat setting, and it is not the 30 MPA text on an onlyfire bullet. Butane’s figure is 28–30 mbar. The Weber Q runs at cartridge pressure under EN 417 and does not use a 37 mbar hose.
Will a patio regulator fit a Weber Q 1200N?
No. Weber lists the Q 1200N for an EN 417 cartridge, direct pressure, outdoor use. A 37 mbar patio regulator is the wrong object. Buy the cartridge the manual names. For a patio-gas bottle, choose a low-pressure cart and a matching hose.
What does the Campingaz Party Grill connect to?
A CV 470 cartridge or an R907 cylinder. It is a 2,000 W camp stove. The included line names a gas cartridge, and one UK review says the canister was not in the box. An R907 needs the Campingaz regulator. A 27 mm patio clip is not a substitute.
Northern Ireland: is the butane clip the same as in England?
No. Northern Ireland uses the 35 mm jumbo butane clip. In Great Britain the common butane clip is about 21 mm. Patio gas stays a 27 mm clip-on at 37 mbar in both. Buy the regulator for the bottle in front of you.

Related pages

Gas BBQ buying guide

Gas BBQ

Best gas BBQ: which listing to open, and which to skip

Portable gas BBQ or garden trolley: which one to buy

How to use a gas barbecue: lid open, then shut down

Sources

Public UK sources used for this comparison. Listing prices, stars and review counts are the amazon.co.uk figures for these ASINs. Retrieved 22 October 2026.

  1. NHS: carbon monoxide poisoning (retrieved 22 October 2026)
  2. London Fire Brigade: barbecue safely leaflet, April 2024 (retrieved 22 October 2026)
  3. Liquid Gas UK: Consumer Guidance Sheet 39 (retrieved 22 October 2026)
  4. BS EN 498:2012, outdoor LPG barbecues (retrieved 22 October 2026)
  5. Pennine Gas: safe use of barbecues (retrieved 22 October 2026)
  6. Hamilton Gas Products: which regulator for a gas BBQ (retrieved 22 October 2026)
  7. CADAC UK regulator and gas guide, 2024 (retrieved 22 October 2026)
  8. Weber UK: Q 1200N (retrieved 22 October 2026)