0-90 PSI Mini CO2 Regulator, Aluminium CO2 Regulator Charger Gas Ball Lock Home Brew Gas Disconnect Draft Beer Kegerator

Solid, robust piece of kit compared to the cheaper versions knocking around. It's worth spending that little bit extra.

Connects the small threaded CO2 sparklets to your corny keg or pressure fermenter (in my case a fermenter king/fermentasaurus).Of course the small canisters would take an age to push any kind of volume through your system, and 16g cartridges can only really deliver around 15psi, but if you just need a quick top up (say for a party keg) but like me are picky about delivering a specific pressure, this will do the job.