Designed as a direct York furnace limit switch replacement

or gas applications that are non-corrosive to copper alloys

Industrial Durability: Robust plastic construction resists corrosion and environmental stress in mechanical rooms

eliminating the calibration complexities found in digital alternatives

this switch is specifically calibrated for high altitude applications where thinner air requires a more sensitive 0

ASCO 306-633 Rebuild Kit Els PW 17895 Designed as a direct YorkThe ASCO 306 633 Rebuild Kit is a critical maintenance solution for field technicians servicing ASCO 8040 Series solenoid valves. Specifically engineered for 2 way direct acting gas shutoff valves with AC coilsincluding models 8040G021, 8040G022, and 8040G023this OEM spec kit restores factory level sealing and response times. Each kit includes high wear internal components such as the diaphragm assembly, bonnet gasket, main body gasket, piston U cup