The Lennox X1152 - Healthy Climate X115201 - MERV 11 filter is designed to fit the following air cleaner models:

• Lennox: MF1-20, MAC10-20
• Trion Air Bear: 455602-019; 459200-005 (Air Bear Supreme 2000); 435790-027 (Air Bear), 435790-048 (Son of Bear), and 453000-001 (Air Bear 25X20)

Nominal Filter Dimensions: 20 x 25 x 5 

Actual Filter Dimensions: 19-3/4" x 24-1/4" x 5"

For optimum system performance, replace the filter every 12 months. More frequent filter changes may be required in high dust environments. 

DiscountFurnaceFilter.com is the web's #1 source for the Lennox X1152 air filter. Order your Lennox X1152 filter today and receive fast, FREE Shipping on Orders Over $50 (Contiguous U.S.)!

This filter is designed to work with your heating and air conditioning unit removing particulates from the air stream, protecting your equipment and your health. Conventional filters capture pollutants mainly by trapping larger particles on the filter surface, which restricts airflow. The Lennox X1152 filter draws particles as small as .3 microns deep inside the filter, allowing maximum airflow and filtration efficiency.