AAF Flanders EZ Flow Ii Merv 4 (1 Filter), 20" x 30" x 1" Furnace Air Filter

Continuous filament spun glass filter media for residential and light commercial use Up to MERV 4 rating: Efficient removal of Dust and Lint Durable one-piece heavy chipboard filter frame Low initial pressure drop helps protect HVAC equipment reducing energy costs Lasts up to 30 days