PresAir Trol Side Spout Pressure Switch [21A] [1/8" Barb] [SPDT] (PR11120A) gruber Useful when original volutes are

Useful when original volutes are cracked or worn

Helps maintain reliable control

Filter cartridge for compatible C-4313 and PBW4PAIR spa and pool applications

Supports reliable spa performance

PresAir Trol Side Spout Pressure Switch [21A] [1/8" Barb] [SPDT] (PR11120A) gruber Useful when original volutes areThe PresAir Trol side spout pressure switch is designed for compatible systems that use a 1 8 inch barb connection and need an SPDT pressure activated switch rated at 21 amps. Pressure switches like this are important because they help verify operating conditions before allowing connected equipment to function as intended. This model is especially useful when the original switch no longer responds accurately to pressure changes, has become unreliable,