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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
Professional installation is required to ensure proper insertion depth and electrical connection within the low-voltage control string
It fits many popular Aaon series
and 12kW systems
Lennox X0581 Filter Els PW 17895 Optimized Airflow: Precision-balanced blades provideThe 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