Warning: This product may expose you to chemicals known to cause cancer and reproductive harm

it ensures tight tolerance and specific calibration required for McQuay rooftop units and furnace assemblies

A failed ignitor often triggers a "3-trial" lockout

Safety Compliance: Maintains the combustion air proving sequence required for safe unit heater operation

As a veteran-preferred air flow proving switch

Superior F35A / Alco A3F Suction Line Filter Core Els PW 17895 Warning: This product may exposeFor veteran technicians and commercial contractors, the Superior F35A Alco A3F Suction Line Filter Core is a critical component for system clean up and protection. This core is engineered for refrigeration system contaminant removal, featuring a super pleated filter media that provides approximately 115 square inches of surface area. This high suction line filtration area ensures a low pressure drop while trapping solid contaminants down to 10