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The Lennox 63W57 Pressure Switch is a critical genuine OEM component engineered for precise furnace diagnostic monitoring
and Keeprite to ensure a perfect fit without field modifications
This part is specifically engineered for the Model 143 gas regulator
It is the direct replacement for the 94-390
Watts 0382570 Valve Els PW 17895 The Lennox 63W57 Pressure SwitchThe Watts 0382570 Valve (Model 740 1 30) is a high capacity boiler pressure relief valve engineered specifically for technical professionals managing large scale hot water space heating systems. Built with a rugged iron body, this ASME Section IV certified valve delivers a massive discharge capacity of 1,300,000 BTU hr at a 30 PSI set point. Contractors and facility managers frequently specify the Watts 740 series because of the unique design where
