Lennox X6667 Filter Els PW 17895 Reliable Construction: Features a robust

Reliable Construction: Features a robust housing and gate assembly designed to withstand the corrosive flue gases common in coal and oil applications

facilitating a direct connection to the boiler tapping while allowing for a standard discharge pipe configuration

Key Benefits: Precise Thermal Regulation: Features a fixed 195°F opening point to prevent heat-related damage and a 130°F closing point for reliable resets

the furnace ignitor kit delivers stable operation under repeated heating cycles and varying load conditions

Manufactured from high-strength sintered carbon steel using a powdered metal process

Lennox X6667 Filter Els PW 17895 Reliable Construction: Features a robustThe Lennox X6667 is an OEM high efficiency pleated air filter engineered for the Healthy Climate PureAir PCO 20C air purification system. This specialized 21x26x4 canister style media is critical for maintaining the intended static pressure and airflow velocity required by Lennox air handlers. While historically rated at MERV 10, the newer X666701 specification often reflects an upgrade to MERV 11 efficiency, providing superior capture of microscopic