Cooking with Gas!
The Halfords portable gas stove and similar-style stoves, all require the use of a screw-in cartridge called a CP250 or A4. This refers to a specification of design of the can and the thread, as well as holding 220g of a propane/butane mix.
It fits into the stove on the right-hand side by lifting back the panelon the unit, nozzle first, and screwing in when it gets to the attachment.The CV300/470/500 cartridges are designed to be free-standing, with a screw-on burner which fits on top to create a self-contained unit. Depending on your requirements, the bigger burners will use more gas to cook at full blast, but will produce more heat and cook faster.
It is possible however to fit these kind of canisters to the full-sized stoves by using a special regulator designed for use with CV canisters, unfortunately not stocked by Halfords at this time. However, please bear in mind that with all of the burners in operation, even the CV500 canister is unlikely to last more than an hour.
The Campingaz 907 cylinders are supplied empty from Halfords, due to strict laws regarding the securing and storage of full cylinders. You'd then need to take the canister to a camping store or somewhere like a DIY store to replace it with a full cylinder ready for use. These are designed only to be used with full-size camping stoves, and need the use of a regulator to fit it to the stove.