Lennox X8789 Pleated Filter

The Lennox X8789 is a high-efficiency MERV 16 pleated filter designed for the Healthy Climate PureAir PCO16-28 air purification system. This genuine OEM component, which is identical to X878901, provides hospital-grade filtration by capturing over 95% of airborne particles and bioaerosols down to 0.3 microns. For technicians performing annual maintenance, ensuring the actual dimensions of 16-3/8" x 25-1/2" x 4-3/8" are compatible with the cabinet is critical for maintaining an airtight seal and preventing bypass. This filter is engineered for a low pressure drop, which optimizes HVAC system airflow and reduces static pressure strain on the blower motor. Frequent replacement is recommended in high-contaminant environments to maintain the 1600 CFM design capacity. Utilizing the Lennox X8789 replacement ensures the PCO system’s carbon-coated fibers and catalytic processes function at peak efficiency to neutralize volatile organic compounds and odors alongside standard particulate filtration.

• MERV 16 Efficiency: Provides industry-leading filtration, removing contaminants as small as 0.1 microns to protect sensitive evaporator coils.
• System Compatibility: Original equipment for the PureAir PCO16-28 cabinet, ensuring a precise fit that 1-inch retail filters cannot replicate.
• Optimized Airflow: High-capacity pleated media maximizes surface area, allowing for extended life and minimal resistance.
• Comprehensive Protection: Effectively captures dust, pollen, mold spores, pet dander, and ultra-fine combustion particles.

Is the X8789 compatible with the X878901?
Yes, the Lennox X8789 and X878901 are identical parts and can be used interchangeably in the PCO16-28 system.

What are the actual dimensions of this filter?
While the nominal size is 16 x 26 x 5, the actual measurements are 16-3/8" x 25-1/2" x 4-3/8". Always verify these dimensions against your housing before installation.

Can I use this in any 16x26 furnace slot?
This filter is specifically engineered for Lennox PureAir cabinets. Because of its 4-3/8" thickness, it will not fit in standard 1-inch or 4-inch filter grilles without the proper PCO housing.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.