Description This pressure gauge is designed for pressure measuring and adjustment on the filter for swimming pool, spa, aquarium etc. Dial size : 2" Process connection: 1/4"NPT center back mount Case : 304 stainless steel case and crimped ring Window : Polycarbonate Dial plate : aluminum, with pointer stop Pointer : Aluminum, black, DIN style Boudon tube : Copper alloy Movement : Brass Connection : Brass, one piece design Oil cap : rubber, black color Filling : Glycerin filled, dampens the effect of vibration and pulsation; lubricates the movement and extends the life of gauge. IP class : IP67 Accuracy : +/-3-2-3% Pressure range : 0-35psi/250kpa dual scale Color zone, blue zone for filter 0-17.5psi, red zone for clean 17.5 to 35psi Working temperature : -4 to 140 deg F/-20 to 60 deg C Ambient temperature : 140 deg F/60 deg C maximum
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