Watts LF757DCDA DOSY CFM 6 Part of the LF757DCDA Series inlet protection finder Product Codes: Z415N 2NH 7N Product Codes: Z415N 2NH 7N 50 Minimum Temperature Fahrenheit 33 Outlet Connection Size 4 IN Outlet Connection Type Flanged Joint Outlet Shutoff Valve Type Outside Stem And Yoke Gate Valve Outlet Thread Type Does Not Apply To Product Part Number F111586 Polymer Coating No Pressure Operation Continuous Protection Type Backpressure and Backsiphonage Seat Material Engineered Plastic Series 957 Strainer No Technologies Flood Detection Tradename None Specification Sheet 957 from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements a cubic feet per minute metered bypass to detect underground leaks and unauthorized water use