Watts U800M4QT 3 4 Part of the 800M4QT Series SITEDRAIN and work surfaces and work surfaces Expansion Joint Board offers a robust and versatile option for creating separation between concrete slabs This 3 4 inch anti siphon pressure vacuum breaker backflow preventer helps prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage 50 Minimum Temperature Fahrenheit 33 Outlet Connection Size 3 4 IN Outlet Connection Type Union Joint Outlet Shutoff Valve Type Quarter Turn Ball Valve Outlet Thread Type NPT Part Number 0388005 Polymer Coating No Pressure Operation Continuous Protection Type Backsiphonage Seat Material Plastic Series 800M4QT Strainer No Technologies Does Not Apply To Product UPC 098268300833