The main reason you might replace these parts is because:
1. You have gas leaking through your diaphragm. (this is extremely uncommon)
2. The gasket on around the edge of your diaphragm is worn out. (this is also extremely uncommon)
3. You have a pressure creep issue. (this is the most likely need to purchase this assembly)
Regulator Pressure Creep
Regulator creep is normally caused by contamination getting into the seat and seat cap assembly of your regulator. This is normally a result of gas leakage over the seat and seat cap assembly causing high-pressure gas to leak into the low-pressure gas side of the regulator. As this happens your regulator will "creep" up in pressure until the pressure relief valve activates. Replacing these parts in your regulator will fix this issue and only takes a few minutes to replace.
Note for owners of the older MK3 Regulator: The sintered valve is compatible with the MK3 regulator. The diaphragm itself is not compatible with the MK3 Regulator as it is much larger.
Click HERE for service instructions.
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