Yellow - Liquid
Keep your beverage nicely carbonated with a carb cap. Great for travelling or handing in competition beers. Perfect for keeping a 2L bottle of Coke/Pepsi at top fizz levels until the very end.
Ball Lock Plastic Carbonation Cap x 6.35mm duotight
Designed to suit Screw top beer bottles, Soda & Coke bottles, & FermZilla lids.
If you have a keg system you should have at least a couple of these as they are so useful.