PresAir Trol Threaded Stem Pressure Switch [21A] [1/8" MPT] [SPDT] (PM11120A) invensys A correct escutcheon helps the

A correct escutcheon helps the seat look finished and intentional instead of slightly incomplete after a repair

A start capacitor helps deliver the temporary electrical boost a compatible motor needs during startup

which matters in spas where trim and visible jet parts contribute significantly to the overall interior look

A diverter jet barrel plays a key role in how water is routed and felt at the seat

Designed for compatible 2 inch Hayward plumbing

PresAir Trol Threaded Stem Pressure Switch [21A] [1/8" MPT] [SPDT] (PM11120A) invensys A correct escutcheon helps theThe PresAir Trol threaded stem pressure switch is designed for compatible systems that use a 1 8 inch MPT connection and require an SPDT pressure activated switch rated at 21 amps. Pressure switches like this play an important role in helping the system respond properly to operating conditions before connected equipment is allowed to run as intended. This replacement is especially useful when the original switch has become inaccurate, intermittent, or