This Chrome S&P air switch is a low profile  push button actuator designed for spa and hot tub systems with a clean chrome finish and easy push-fit installation it provides a reliable and stylish control interface for air operated spa units  operates standard air switch spa units Low profile design for a sleek modern look chrome top diameter 44 mm 1.72" fits into a 35 mm hole  no screws needed  just push into place
Perfect for spas hot tubs whirlpools and bath systems with pneumatic control setups