Furnace Air Filter Sizes

Currently the most common size furnace filters are 10x20.

Furnace air filter sizes.

What air filters are best. If you can t find nordic pure in your size or if you prefer to buy and pick up a new filter in a store immediately honeywell s fpr 9 filters and filtrete s mpr 1500 filters are similar. Posted on november 19 2018. Nearly all ac filters go by the nominal size which is the actual size rounded up to the nearest inch.

By using the nominal size you can order a new air filter that slides in and out of place with ease. What s the difference between nominal size and actual size. This honeywell 16 in. Filtrete 16x25x4 nominal size 15 88x24 56x4 31 ac furnace air filter mpr 1000 dp micro allergen defense deep pleat 2 pack exact dimensions 15 88 x 24 56 x 4 2.

There are different types and sizes offering different benefits for cleaner air and hvac equipment. The most common ac filter sizes and furnace filter sizes are the 16x20x1 air filter. Most standard air filters are 1 2 inches in thickness. What size do furnace filters come in.

What is the most common size furnace filter. Pleated fpr 10 air filter captures a high percentage of household air particles including those which are most harmful to your lungs. The furnace air filter is a critical component of any forced air hvac system. There are hundreds of variant sizes of furnace filters because air filters and furnace are both the same.

Furnace air filter guide. 10 x 20 14 x 20 16 x 24 18 x 30 12 x 12 14 x 24 16 x 25 20 x 20 12 x 20 14 x 25 18 x 18 20 x 24 12 x 24 14 x 30 18 x 20 20 x 25 12 x 30 15 x 20 18 x 24 20 x 30 12 x 36 16 x 20 18 x. The filter will protect against bacteria dust mold pollen smoke and viruses for up to 12 months. Ensuring that your filter fits properly in your hvac system means making sure that you have not only the right length and width but also the thickness of your filter.

How to measure your air filter. When searching for a 16x25x1 air filter for example you ll likely see 15 5 x 24 5 x 75 listed.