Watts LF757DCDA OSY CFM 8 Part of the LF757DCDA Series SITEDRAIN The exterior basement waterproofing membrane The exterior basement waterproofing membrane is made in the USA from 100% High density polyethylene (HDPE) 50 Minimum Temperature Fahrenheit 33 Outlet Connection Size 3 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 88009313 Polymer Coating No Pressure Operation Continuous Protection Type Backpressure and Backsiphonage Seat Material Stainless Steel Series LF909 Large Strainer No Technologies Flood Detection Tradename None Specification Sheet Flood Sensor Connection Kit Watts It is used primarily on fire sprinkler lines when it is necessary to monitor unauthorized use of water Its compact housing consists of two independently operating tri link check valves