11 1/4x19 1/4x1 Exact MERV 13 AC Furnace Filters 12 Pack Environmental Controllers Air Velocity: Max 25 mm/sec

Air Velocity: Max 25 mm/sec (4900 ft/min)

Independent illumination reduces interference from ambient light sources

(2) 44in by 22in heat mats

*Tested & Verified by AHAM - Testing standard of 24 hrs at 80°F

50ft Length

11 1/4x19 1/4x1 Exact MERV 13 AC Furnace Filters 12 Pack Environmental Controllers Air Velocity: Max 25 mm/secNordic Pure MERV 13 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200