Safety Regulation: Actively monitors the 1-5 PSI pressure range to protect heat exchangers from damage caused by improper flow rates

this kit is the standard for restoring factory-spec flow rates without the need for total valve replacement

The pan features built-in flow gradients to eliminate standing water and comes with factory-sealed outlets that must be properly opened during the HVAC condensate management installation process

Enhanced Terminal Protection: Equipped with dual enclosure covers that accept 1/2" conduit connections

Lennox 31W19 Flue Transition 319852-301 Safety Regulation: Actively monitors theThe Lennox 31W19 Flue Transition is a critical induced draft component engineered for high performance Lennox packaged HVAC systems. As an essential OEM replacement part, this flue exhaust transition manages the path of combustion gases from the heat exchanger to the external vent, preventing backdraft and ensuring safe equipment operation. Fabricated to strict factory tolerances, the 31W19 eliminates the alignment issues ????? associated with