Watts 53L-Z2-030 1/2 - Part of the 53L Series mainline-siltfence S-PS Penetrating Specialty Seal is

S-PS Penetrating Specialty Seal is a natural-looking penetrating sealer that can be used on a variety of surfaces for both vertical and horizontal applications

dual weepholes for double drainage performance

ZN554-4NH-TC

ZN451B-2NH-B-CL

integral gravel stop

Watts 53L-Z2-030 1/2 - Part of the 53L Series mainline-siltfence S-PS Penetrating Specialty Seal isThis 1 2 inch pressure relief valve is used in residential applications to protect against excessive pressure on domestic storage tanks and tankless water heaters. It consists of a bronze body construction with 1 2 inch NPT threaded male inlet and 1 2 inch NPT threaded female (drain) outlet connections, test lever and stainless steel spring. It is ANSI Z21. 22 approved, listed and certified by CSA. The pressure relief is set at 30 psi (2. 1 bar).