Watts 740 060 FS 1 - Part of the 740 Series ZC100F-3NH The Roof Hatch Safety Railing

The Roof Hatch Safety Railing System is engineered for both new construction and retrofit projects

ZN400H-4IP

Fire Retardant Plastic is designed for use in applications requiring both flame resistance and durability

Z104-20-4NH

Watts 740 060 FS 1 - Part of the 740 Series ZC100F-3NH The Roof Hatch Safety RailingThis pressure relief valve has a 1 inch NPTF female inlet, 1 1 4 inch NPTF female outlet, and pressure relief setpoint of 60 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