Trufilter 20X20X1 MERV 13 4 Pack AC Furnace Air Filter MADE in USA
Product Grade 20x20x1 air filter. Actual Size: 19 11/16’’ x 19 11/16’’ x 3/4‘’. Comparable with MPR 1500-1900 & FPR 10. Based on ASHRAE Standard 52.2-2017 Initial Efficiency / Resistance. Noticeably cleaner air in 48 hours.