16x18x1 MERV 13 Plus Carbon AC Furnace Filters 8 1/2x30x1 With the 4" and 5"

With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer

Nordic Pure 14x30x1 MERV 13 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home

MERV 15 Trion Air Bear replacement furnace air conditioner filters are comparable to HVAC filters with the rating of MPR 2800

Actual Size: 9 1/2 x 13 1/2 x 3/4 (9

16x18x1 MERV 13 Plus Carbon AC Furnace Filters 8 1/2x30x1 With the 4" and 5"Actual Size: 15 3 4 x 17 3 4 x 3 4 (15. 75 x 17. 75 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, smog, virus carriers, mold spores, help eliminate unwanted odors and other contaminants. Ideal for customers looking for superior filtration but needing an odor control element Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 13 is equivalent to MPR 2200