This compression style fiber washers are a must if you use regulator that requires a gasket change everytime you change the tank. If your regulator uses this type of gasket we recommend installing a new one with EVERY new tank.
Comes in a convenient zip lock bag.
NOTE: These are not intended for use with the KOMOS CO2 Regulator. For the correct KOMOS Regulator replacement gasket, please use a KOMOS Nylon Washer.