Febco 856STDCDA LG GPM 6 Part of the 856ST Series Drain Fitting UPC 098268784206 UPC 098268784206 This 4 IN reduced pressure zone assembly backflow preventer helps prevent the reverse flow of fire protection substances and water of non potable quality from being pumped or siphoned into potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements 50 Minimum Temperature Fahrenheit 33 Outlet Connection Size 6 IN Outlet Connection Type Flanged Joint Outlet Shutoff Valve Type No Shutoff Valve Part Number 0122900 Polymer Coating No Pressure Operation Does Not Apply To Product Protection Type Backpressure and Backsiphonage Seat Material Stainless Steel Series 856ST Strainer No Technologies Does Not Apply To Product Tradename None ES F 856ST Approved vertical installation flow up