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ZB415-BZ1-DP-2NL
ZM400SS-3NL
no coupling needed
Specifications Brand Watts Buy American Act Compliant NO Lead Free Not In Scope Outlet Connection Size 4 IN Outlet Connection Type Push Specification Sheet - FS-740
Specifications Brand Watts Buy American Act Compliant NO Lead Free Not In Scope Outlet Connection Size 2 IN Outlet Connection Type Push Specification Sheet - FD-1100-A
Watts 994-DOSY-FS 4 - Part of the 994 Series ZA100F-3NH ZB415-BZ1-DP-2NLThis 4 inch reduced pressure zone assembly backflow preventer help stop the reverse flow of liquids due to backpressure or backsiphonage, where potential health hazard exists. Its compact modular design facilitates easy maintenance with a single access cover for in line repairs. This assembly consists of a short lay length lead free stainless steel body, test cocks, corrosive resistant stainless steel bottom mounted relief valve, torsion spring check