Watts LFU009M2 QT S FS 1 Part of the LFU009 Series Egress System This 1 2 inch lead free This 1 2 inch lead free reduced pressure zone backflow preventer assembly is designed to prevent the flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements Specifications Body Material Ductile Iron Brand Watts Class Rating 125 or 150 Control Type Lever Handle CV Rating 302 GPM Disc Material Stainless Steel EAN 098268594119 Inlet Connection Size 3 IN Inlet Connection Type Lug Lead Free YES Maximum Operating Temperature Fahrenheit 248 Maximum Working Pressure PSI 200 Minimum Temperature Fahrenheit 33 Operating Torque Dry 387 in lbs Operating Torque Wet 250 in lbs Outlet Connection Size 3 IN Outlet Connection Type Lug Part Number 0525140 Seat Material EPDM Series DBF 03 Silicone Free Yes Stem Shaft Material 316 Stainless Steel Valve Style Lug Specification Sheet DBF Features Features flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve and replaceable check seats with an internal relief valve for reduced space requirements