McDonnell & Miller 69 Cut Off Refrigerant this assembly is strictly for

this assembly is strictly for natural gas water heaters

To ensure the longevity of the fan condenser motor 1172162

Its robust internal pilot construction facilitates rapid response times

63" WC Pressure Switch designed specifically to monitor the pressure differential across the heat exchanger

McDonnell & Miller 69 Cut Off Refrigerant this assembly is strictly forThe McDonnell & Miller 153900 (Series 69) is a professional grade mechanical low water cut off designed for reliability in low pressure steam boiler applications. This auto reset unit features a 4 1 8" insertion length and is engineered for mounting directly into 2 1 2" NPT boiler side tappings, making it compatible with residential and commercial boilers of any steaming capacity. By utilizing a packless bellows and a dual switch assembly, this