replacing the 170039 is standard procedure whenever the flue collector or wrapper is disassembled

and cooling systems where precision overcurrent safety is non-negotiable

This 1 3/8" sweat moisture indicator features extended copper ends

protecting the equipment from backdrafts and improper combustion

Rheem-Ruud SP20164 Gas Valve Els PW 17895 replacing the 170039 is standardThe Rheem Ruud SP20164 Gas Valve is a critical OEM replacement part designed for precision fuel regulation in residential and commercial natural gas water heaters. This 1 2" NPT gas control valve (thermostat) operates with a 4" WC (Water Column) manifold setting, ensuring stable burner performance and accurate temperature management. Engineered for standing pilot models, this direct fit component is compatible with Rheem, Ruud, and Richmond