Watts 757 NRS 10 Part of the 757 Series silt fence selector This 3 4 inch lead free This 3 4 inch lead free boiler pressure relief valve is used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment The 20 gauge Steel Lath is ideal for one coat stucco applications 50 Minimum Temperature Fahrenheit 33 Outlet Connection Size 10 IN Outlet Connection Type Flanged Joint Outlet Shutoff Valve Type Non Rising Stem Gate Valve Outlet Thread Type Does Not Apply To Product Part Number 0111527 Polymer Coating No Pressure Operation Continuous Protection Type Backpressure and Backsiphonage Seat Material Engineered Plastic Series 757 Strainer No Technologies Does Not Apply To Product Tradename None Specification Sheet 757 UPC 098268119664