Watts 740 040 FS 1 - Part of the 740 Series ZA100F-8NH It features a lead free

It features a lead free bronze body with union end and NPT threaded female connections

Epoxy-coated cast-iron body with anchor flange and dual weepholes (primary + secondary) for enhanced drainage robustness

Ideal for both residential and commercial wet spaces—such as bathrooms

top of stair landings

Fits 1/4 IN to 1 IN backflow

Watts 740 040 FS 1 - Part of the 740 Series ZA100F-8NH It features a lead freeThis pressure relief valve has a 1 inch NPTF female inlet, 1 1 4 inch NPTF female outlet, and pressure relief setpoint of 40 psi. The valve can be used for hot water space heating boiler applications to protect against excessive pressure. It features an iron body, non metallic disc to metal seating, and test lever. Includes a nonrestrictive discharge drain line flood sensor with SentryPlus Alert technology to detect excessive water discharges from the