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XS Scuba Valves Service Manual
Mandatory Replacement Parts: The following parts are
considered mandatory replacement parts during a routine
servicing:
Outlet o-ring(2) or (15)
Inlet (neck) o-ring(3)
Seat assembly(5)
Stem o-ring(8)
Stem washer(9)
Bonnet o-ring(17)
Safety Assembly(1)
Service Kits: The best way to service a valve is to use
the appropriate XS Scuba Valve service kit. It contains all
the mandatory replacement parts that go into a routine
servicing of the valve except the Safety Assembly(1) which
must get ordered separately.