Get the right cartridge first time.
8g to 88g, threaded and unthreaded, plus cylinders and nitrogen. Tell us the job and we will point you at the size and thread that fits.
- Free delivery on orders over £149
- Next working day from £3.49
- Not sure? Ring 023 9237 8700, 9am–5pm Mon–Fri
What are you using it for?
Pick the job and we will show you the size and thread that fits.
Culinary supply only. Age verified at checkout.
Shop by category
Every range we stock. Sizes, threads and gas types are on each product page.
Which size do I need?
The table nobody else publishes. Gas colours follow BS EN 1089-3, the same coding you see on the cylinder shoulder.
| Size | Gas | Typical use | Thread | Shop |
|---|---|---|---|---|
| 8g / 8.4g | CO₂ | Soda syphons, Sparklets style | Threaded | Soda CO₂ |
| 12g | CO₂ | Airgun pistols, airsoft, rifles | Unthreaded | 12g |
| 16g | CO₂ | Road and MTB tyres, mini kegs | Threaded Unthreaded | 16g |
| 88g | CO₂ | Mini kegs, growlers, larger tyres | Threaded | 88g |
| Cylinders | CO₂ | Home carbonation, bar and cellar dispense | Machine specific | Cylinders |
| N₂O | N₂O | Cream whippers and dispensers | Threaded | N₂O |
| N₂ | N₂ | Nitro coffee, stout, creamy pours | Regulator fit | Nitrogen |
If you are unsure, ring 023 9237 8700 between 9am and 5pm Mon–Fri. We would rather spend two minutes on the phone than have you send a box back.
The questions we actually get asked
Threaded or unthreaded — how do I tell?
Look at the neck of your old cartridge, or the socket on the device. Threaded cartridges have a visible screw thread at the tip and are used by most bike inflators, soda syphons and mini kegs. Unthreaded are smooth necked and pierced by a pin, which is airguns, airsoft and some whippers. If your old one is smooth, buy unthreaded.
Will these fit my sparkling water machine?
Home carbonation machines take a screw-in cylinder rather than a small cartridge, and the connection type varies by machine. Check your machine's connection before ordering, or ring us and we will check it with you.
When will my order arrive?
Order by 2:30pm on a working day and it goes out for next working day delivery. Delivery starts at £3.49 and is free on orders over £149. Full detail is on our delivery information and policy page.
What if I order the wrong size?
See returns and right to cancel for the current policy. If you are not sure before you order, ring us first on 023 9237 8700 and we will tell you what fits.
Is it safe to use with drinks?
Our drinks lines are sold as food grade. Product pages state the grade for each item. Please read gas cartridge safety and whipper and syphon safety before use.
Do you supply trade and bulk?
Yes. Most of our volume goes to bars, bike shops, shooting clubs and homebrew retailers. Ring 023 9237 8700 or see contact us and bank details to talk about account terms.