Its compact 55mm frame is designed for efficient DIN rail mounting or direct panel installation

Precise Differential Control: Supports differential pressure sensing up to 2

Constructed for long-term durability in demanding outdoor environments

Featuring the industry-standard Catch-All molded porous core

Always verify your specific furnace series (e

Lennox 81M43 Condensate Collar Refrigerant Its compact 55mm frame isThe Lennox 81M43 Condensate Collar is a critical OEM replacement part engineered specifically for downflow furnace applications. Designed to manage moisture runoff within the evaporator coil housing, this collar ensures that condensation is directed precisely into the drain lines, preventing internal corrosion and water damage to the heat exchanger and electrical components. In a downflow configuration, managing gravity fed moisture is vital to