Resideo - Honeywell Home TRN2321T1 Media Air Filter

The TRN2321T1 Media Air Filter from Honeywell Home by Resideo delivers reliable residential indoor air filtration for cleaner air with every cycle. This pleated media filter is designed for the Perfect Fit Media Air Cleaner, providing efficient performance in a compact 23-1/2" W x 21" H x 5" D frame.

With a MER value of 10 and a low airflow resistance of 0.17 in. wc at 500 fpm, this filter balances airflow with effective particle capture. It delivers multi-stage efficiency of 22% (E1), 61% (E2), and 87% (E3) to reduce dust, pollen, and smaller irritants in typical indoor environments. The unit handles temperatures from -40 to 140 degrees Fahrenheit and meets ASHRAE 52.2 and UL 900 standards for dependable residential use.

• Pleated media design for high surface area and extended life
• Residential indoor air quality improvement
• Exact dimensions 23-1/2" W x 21" H x 5" D
• MER 10 for solid filtration performance
• Low pressure drop 0.17 in. wc at 500 fpm
• Standards ASHRAE 52.2 and UL 900