ABC Permanent O-Ring for CO2 Cylinders/Regulators

A permanent o-ring is a great replacement for the nylon washers/grommets used to ensure a pressure-tight seal between CO2 tanks and regulators.  Instead of a nylon washer, threading this washer into the CO2 tank or regulator (depending on brand compatibility) makes certain you won't blow through a tank of CO2 from a common leak point.

 

From our experience, the permanent o-ring fits all Sherwood CO2 tank valves and the following brands of CO2 regulators:

CHUD
Taprite
Norgen

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