Lennox X0581 Filter Els PW 17895 you only need to replace

you only need to replace the individual burner orifices when converting fuel sources or replacing a clogged jet

Professional installation is required to ensure proper insertion depth and electrical connection within the low-voltage control string

and 12kW systems

Optimized Airflow: Precision-balanced blades provide consistent 3x1 7/8 performance to satisfy pressure switch requirements

This is the official direct cross version of the B4310407

Lennox X0581 Filter Els PW 17895 you only need to replaceThe Lennox X0581 is a genuine OEM replacement filter designed for the Healthy Climate BMAC 12 (Boxed Media Air Cleaner) series. As a veteran technician, I recommend this MERV 11 secondary filtration media to maintain system static pressure while effectively capturing sub micron particles. With nominal dimensions of 16"x25"x3", this pleated synthetic media provides a significant surface area for high dust holding capacity without the rapid pressure