a 20x30x1 air filter is actually 19 ½ x 29 ½ x ¾
Actual Size: 15 7/8 x 19 3/4 x 4 3/8 (15
Actual Size: 15 1/2 x 29 x 3/4 (15
Actual Size: 16 x 26 x 3/4 (16 x 26 x 0
Nordic Pure 18x18x1 MERV 8 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer
17 1/8x34 7/8x1 MERV 14 AC Furnace Filters 14x25x 1/2 a 20x30x1 air filter isActual Size: 17 x 34 3 4 x 3 4 (17 x 34. 75 x 0. 75) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and removed. Ideal for customers with health problems or for commercial units which support a rating of MERV 14 and above Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 14 is equivalent to MPR 2800 Made in the USA. Nordic Pure MERV 14