Pay in 4 interest-free payments of $860.35 Learn more
Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
ZN400J-4IP
Applicable for liquid and steam service to protect check valves
Features Use with 1 1/4 to 3 IN 009/909
ZB1400-4NL-HD
34 GPM per linear ft
Watts 757-OSY 4 - Part of the 757 Series ZC100F-2NH ZN400J-4IPThis 4 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of water of non potable quality 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 hazards and from other contaminants found at the service line