19x21x1 MERV 10 Plus Carbon AC Furnace Filters 17 1/4x26x1 Replaces Trion Air Bear Cub

Replaces Trion Air Bear Cub filters and others that require an actual 3" depth and ideal for superior filtration or commercial units

but they WILL be strong

Nordic Pure 20x25x5 Air Bear Replacement MERV 8 Carbon air filters measure an actual depth of 4 7/8"

0 micron contaminants and up to 90% of 1

19x21x1 MERV 10 Plus Carbon AC Furnace Filters 17 1/4x26x1 Replaces Trion Air Bear CubActual Size: 18 1 2 x 20 1 2 x 3 4 (18. 5 x 20. 5 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores, help eliminate unwanted odors and other contaminants. Ideal for customers who not only need odor control but whose daily life demands high filtration Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 10 is equivalent to MPR 1000