This gasket fits our D74 and D76 Ball Lock Mini Regulators (the ones that take threaded C02 cartridges). Does not fit our D70 Paintball Mini Regulator, which relies on the paintball tank O ring for a seal.
These can become prematurely worn when a cartridge is overtightened (do not use a wrench when installing cartridges, hand tighten only), and they also wear out over time. You will know this gasket is bad when C02 leaks out the lower venting hole in your Mini Regulator when you are installing a cartridge.
Note: These do not fit Brewer's Edge Micro Regulators, for a micro regulator gasket, see our item T40.