Watts RBFF Part of the RBFF Series Z100F 4NH After setting the feet of After setting the feet of the pads in concrete and allowing time to cure the Access Tile pads can then be unscrewed and replaced should any units get damaged or worn out with repeated use Specifications Body Material Brass Brand Watts EAN 098268007220 Inlet Connection Size 3 4 IN Inlet Connection Type Male Threaded Inlet Thread Type NPT Lead Free NO Maximum Temperature Fahrenheit 210 Maximum Working Pressure PSI 125 Outlet Connection Size 3 4 IN Outlet Connection Type Female Threaded Outlet Thread Type NPT Part Number 0066109 Pressure Range 75 to 150 PSI Pressure Relief Setting PSI 125 Protection Type Temperature And Pressure Series 100XL Shank Length 1 1 8 IN Temperature Relief Fahrenheit 210 Thermostat Probe Length 8 IN Specification Sheet 1L Features Unique For air charge servicing and maintenance it also has a drain port with integral ball valve for unloading pressure from waterside of expansion tank diaphragm