Watts 957 NRS FS 3 Part of the 957 Series Hanes Geo Specifications Air Precharge 12 PSI Specifications Air Precharge 12 PSI Air Valve Yes Bladder Material Butyl Brand Watts Buy American Act Compliant NO Color Gray Diameter 21 IN EAN 098268219609 Electricity Required No Fuel Gauge No Inlet Connection Size 1 1 4 IN Inlet Connection Size Metric 32 MM Inlet Connection Type Female Threaded Inlet Thread Type NPT Lead Free Not In Scope Liner Material Does Not Apply To Product Maximum Operating Temperature Fahrenheit 220 Maximum Working Pressure PSI 100 Mount Type Free Standing Orientation Vertical Part Number 0066614 Series ETX Stand Included Yes Tank Acceptance 32 Specifications Compatible Series or Model 919 Compatible Size Used On 1 1 4 IN to 1 1 2 IN Kit Contents Check Assembly Alert features available with add on sensor connection kit Specification Sheet 957 (Spanish)