4.5in Air Filter Box with MERV 11 Filter for 21" wide Furnaces (AM11-2025-FC) Surge Protectors Most homeowners protect their electronics

Most homeowners protect their electronics

CEC Title 20 certifiedÂÂ

This filter is designed for furnaces and is 14" x 25" (Furnace model numbers ending in AN

This filter is designed for air handlers and is 16" x 20"

Enjoy a relaxing shower faucet for years to come with a limited lifetime warranty

4.5in Air Filter Box with MERV 11 Filter for 21" wide Furnaces (AM11-2025-FC) Surge Protectors Most homeowners protect their electronicsA MERV 11 media air cleaner for residential applications, that helps remove a wide range of airborne particles as small as 0. 3 micron Intuitively designed with outer dimensions that match original equipment furnace and air handler. This filter is designed for furnaces and is 20" x 25" (Furnace model numbers ending in CN, CX, or CU)