Carrier 1856-3 Air Cleaner Carbon Filters, 20″ x 5″ x 3/8″, MERV 4, 3/Pack

Carrier Air Cleaner Carbon Filters. This MERV 4 filter is 20" x 5" x 3/8" and is sold in a set of 3.

For use with 20 x 20 and 20 x 25 air cleaners.
Fits models CMF2020, CMF2020A, CMF2025, CMF2025A, SAS-12 and SAS-18.

This filter works with many other brands. See model list PDF below.

Replace this filter a minimum of once or twice a year depending on the dirt load.

Also known as 221-E2-1856-3.