Watts 8 957-OSY-FP - Part of the 957 Series silt-fence-selector ZM415SH-3NL

ZM415SH-3NL

Watts 6 IN model 408-OSY-RW

stainless steel shaft

so as to not alter the soil hydrology

55 Minimum Temperature-Fahrenheit 33 Outlet Connection Size 2 1/2 IN Outlet Connection Type Flanged Joint Outlet Shutoff Valve Type Quarter Turn Ball Valve Outlet Thread Type Does Not Apply To Product Part Number F122649 Polymer Coating No Pressure Operation Continuous Protection Type Backpressure and Backsiphonage Seat Material Stainless Steel Series LF009 Strainer No Technologies Flood Detection Field Guide - Backflow Preventer Repair Parts 007 and 009

Watts 8 957-OSY-FP - Part of the 957 Series silt-fence-selector ZM415SH-3NLThis 8 inch reduced pressure zone assembly backflow preventer with SentryPlus Alert technology with automatic shutoff ACV for flood detection and prevention is designed to prevent the reverse flow of contaminated water 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, as well as provide alerts and automatic shutoff capability