Febco LF850-NRS 4" Double Check Valve Assembly

Febco LF850 double check valve backflow preventer assembly is designed for non-health hazard applications and prevents the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply due to backsiphonage and or backpressure. The assembly has an epoxy coated ductile iron body, flanged end connections, two in-line independent check valves, replaceable stainless steel check seats, test cocks, and non-rising stem resilient wedge gate valves.