The Best 20x25x4 Furnace Filter Of 2019. Buyer’s Guide.

Why did this 20x25x4 furnace filter have the first place?

Long-lasting: designed to last up to 3 months. Suitable for residential and business or commercial use (industrial grade). High quality: filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200 f. Synthetic media provides significantly higher particulate efficiency than standard cotton media. Hospital grade merv 13 synthetic media: attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. Made in the usa: manufactured by filterbuy in the USA using 100% american made components. Save big on a premium product by purchasing directly from the manufacturer.

20x25x4 merv 13 pleated air filter for ac hvac or furnace (pack of 4 filters). Afb platinum merv 13, comparable with mpr 1500 to 1900 (ultimate allergen defense) or allergen elite fpr 10.

Why did this 20x25x4 furnace filter is on the second place?

If you need honeywell replacement see 20x25x5 filters. Merv 12 filter media to help reduce pollen, pet dander, dust, mold and more. Nominal size: 20-inch by 25-inch by 4-inch. Actual size: 19-1/2-inch by 24-1/2-inch by 3-3/4-inch.

Why did this 20x25x4 furnace filter take the third place?

Comparable to honeywell allergen plus fpr 7. Nominal size: 20 x 25 x 4 actual size: 19 1/2″ x 24 1/2″ x 3 3/4″. Comparable to 3m filtrate mpr 1000 to 1200 micro allergen defense. Fights lint, dust, dust mites, mold spores, pollen, pet dander, and smoke.

Why did this 20x25x4 furnace filter is on the fourth place?

Traps 90% of airborne particles: say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality. High quality: filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200 f. Synthetic media provides significantly higher particulate efficiency than standard cotton media. Made in the usa: manufactured by filterbuy in the USA using 100% american made components. Save big on a premium product by purchasing directly from the manufacturer. Long-lasting: designed to last up to 3 months. Ideal for residential and commercial use.

20x25x4 merv 8 pleated air filter for ac hvac or furnace (pack of 4 filters). Afb silver merv 8, comparable with mpr 300 / 600 (clean living and dust & pollen).

Why did this 20x25x4 furnace filter is on the fifth place?

Nordic pure brand replacements for honeywell units. Merv 12 filter media to help reduce pollen, pet dander, dust, mold and more. Actual size: 19 7/8 x 24 7/8 x 4 3/8. Nominal size: 20-inch by 25-inch by 5-inch. Replacements for honeywell 203720, fc35a1027, fc100a1037 and fc200e1037.