Watts 957N NRS FS 4 Part of the 957 Series ADS Specifications Body Material Iron Brand Specifications Body Material Iron Brand Watts Buy American Act Compliant NO Class Rating 125 or 150 Control Type Lever Handle CV Rating 600 GPM Disc Material Aluminum Bronze EAN 098268604061 Inlet Connection Size 4 IN Inlet Connection Type Lug Inlet Thread Type Does Not Apply To Product Lead Free YES Maximum Operating Temperature Fahrenheit 176 Maximum Working Pressure PSI 200 Minimum Temperature Fahrenheit 14 Operating Torque Dry 644 in lbs Operating Torque Wet 390 in lbs Outlet Connection Size 4 IN Outlet Connection Type Lug Outlet Thread Type Does Not Apply To Product Part Number 0525604 Seat Material Buna N Series BF03 121 Silicone Free Yes Stem Shaft Material Stainless Steel Valve Style Lug UPC 098268604061 Specifications Kit Type Complete Rubber Parts Kit Lead Free YES Product Group BACKFLOW KITS UPC 098268293661 Alert features available with add on sensor connection kit Specification Sheet 957 (Spanish)