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This 4 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of contaminated water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure
White handles for easy lead free identification
Z187-4NH-6×8×12
60 Maximum Working Pressure-PSI 125 Meter Type No Meter Outlet Connection Size 3/4 IN Outlet Connection Type Female Threaded Outlet Shutoff Valve Type No Shutoff Valve Outlet Thread Type NPT Part Number 0340971 Polymer Coating No Pressure Operation Non Continuous Protection Type Backsiphonage Series 188A Strainer No Specification Sheet - 188A
and smooth wall covering
Watts LF757N-DCDA-DOSY-CFM 2 1/2 - Part of the LF757DCDA Series Geotextile This 4 inch lead freeThis 2 1 2 inch lead free N pattern double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non potable quality, but not toxic, 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. It is ideal for protection at cross connections identified as non health