Watts 740 070 FS 1 1/4 - Part of the 740 Series R304 Detectable Warning Surfaces Flashing clamp with built-in gravel

Flashing clamp with built-in gravel stop for installation integrity

threaded or inside-caulk connections

UPC - 098268010268

and the medium-duty grate balances flow capacity with load performance for pedestrian or light traffic areas

Watts 740 070 FS 1 1/4 - Part of the 740 Series R304 Detectable Warning Surfaces Flashing clamp with built-in gravelThis pressure relief valve has a 1 1 4 inch NPTF female inlet, 1 1 2 inch NPTF female outlet, and pressure relief setpoint of 70 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