Robertshaw 1720-004 Valve Assembly Els PW 17895 extending the operational lifespan of

extending the operational lifespan of your critical components

5 inches with a 3/16-inch terminal size

the switch completes the safety circuit to verify proper combustion airflow before allowing the ignition sequence to proceed

System Efficiency: Restores peak thermal efficiency and prevents excessive carbon monoxide production common with improvised conversions

typically found in 3/8" and 1/2" NPT sizes

Robertshaw 1720-004 Valve Assembly Els PW 17895 extending the operational lifespan ofThe Robertshaw 1720 004 is a professional grade thermomagnetic safety valve assembly designed for critical gas flow control in commercial and residential heating equipment. This 1720 series safety valve (TS11J model) features a 7 16 inch tube inlet and outlet and includes a high performance valve magnet assembly. Engineered to prevent hazardous gas accumulation, the magnet is energized by millivoltage from a thermocouple; if the pilot flame fails, the