and BTC series units

The Lennox 72L34 and 72L3401 are technically identical parts with the same specifications and fitment

Utilizing a standard 1/2" inlet/outlet configuration

It features a factory-installed brass tee and a reliable SPDT snap action switch

This part measures approximately 22-5/8 inches in length with a 1

Kunkle Valve 0537-H01-HM0060 Relief Valve THPU32HP7Y and BTC series unitsThe Kunkle Valve 0537 H01 HM0060 is a heavy duty ASME Section IV steam relief valve designed specifically for low pressure hot water boilers, heat exchangers, and steam generators. This 2" NPT inlet x 2 1 2" NPT outlet valve is National Board certified ("HV" designator) and comes factory set at 60 PSI to handle a high discharge capacity of 10,525 lb h (PPH) or 10,524,997 BTU h. Engineered for durability in demanding HVACR environments, it features a