Sand filters and Perflex filters use a 1/4 inch backmount pressure gauge. Sand filter pressure gauge also fits any pool filter or multiport valve that uses a pressure gauge with the threads on the back. Fits many Jacuzzi, Hayward and Sta-Rite/Swimquip pool filters, and also fits sand filters with a top mount multiport valve. For bottom mount 1/4in pressure gauges, see pn A9100.
2in x 1/4in Back Mount Plastic Case Pressure Gauge for Swimming Pool Filter Systems More Info >