An all stainless male gas ball lock cap that fits 38mm plastic PET growler bottles. This allows the PET Growler to be charged with C02 from any female ball lock gas fitting (like our item D32 or D03 Gas Connector), carbonating the cold beverage in the bottle including cold water. Cap threading is industry standard 38-400 growler threading.
This is ideal for adding a bit of charge to a PET growler after you fill it, as no matter how carefully you fill a PET growler from a draft system, some C02 carbonation is lost. Great for serving draft beer away from the keg. For use with plastic bottles only. Note: This does not fit PET bottles with standard PICO thread, like our item I12.
Always wear eye protection. For use with plastic bottles only. Never exceed 20psi carbonation pressure.