Watts 2 1 2 LFFBVS 3C M1 Part of the LFFBV 3C M1 Series Woven Fabric Channel 2 is a sloped Channel 2 is a sloped section with an invert depth from 9 This 3 4 inch lead free dual check vacuum breaker backflow preventer prevents the reverse flow of polluted water from entering into the potable water supply 00 Minimum Temperature Fahrenheit 0 Operating Torque Does Not Apply To Product Outlet Connection Size 2 1 2 IN Outlet Connection Type Socket Outlet Thread Type Does Not Apply To Product Part Number 88005706 Port Type Full Seat Material Virgin PTFE Series LFFBV 3C M1 Stem Packing Material PTFE Stem Shaft Material Brass Stem Type Bottom Loaded Blowout Proof Thrust Washer Material PTFE Type Kit Valve Style 2 piece WOG Rating 400 PSI UPC 098268163995 thrust washer