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By addressing seat degradation and stem wear
this kit addresses common failure points such as worn diaphragms or degraded seals
This SPST aquastat is specifically designed to open the circuit (break) on temperature rise
While the 42-1 is the primary casting for the 42S series
including S1-024-25121-700
Lennox 33H63 Flange 319848-301 By addressing seat degradation andFor veteran technicians maintaining residential or commercial exhaust systems, the Lennox 33H63 Smoke Collar Flange is a critical OEM replacement part designed to ensure a high integrity connection between the smoke collar and HVAC ductwork. This heavy duty furnace venting component is engineered from galvanized steel, providing essential resistance to high temperatures and corrosive flue gases. As a Lennox replacement flange (also identified by part