Normal Air Filter Size

For pricing and availability.

Normal air filter size.

Actual size is the true size of your filter. Take a look at our dusteater and lifestyle series. This is not the true size of your filter. All filters have an actual size and then a nominal size.

This means that on 1 and 2 air filters the nominal size does not include the undercut and the actual size does include the undercut. Most standard air filter sizes are kept in stock. For instance you may find that the stock size at your local hardware store is just a bit too big to fit your housing slot. Nominal size is the printed labeled or rounded size of the filter.

The most common furnace filter sizes are 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 25 4 x 24 and 25 x 25 and these sizes. Furnace filters come in a range of sizes and different brands and types of furnaces use different filters. Your filter s mpr microparticle performance rating indicates its ability to capture tiny particles between 0 3 and 1 micron in size. Filtrete 20 in x 25 in x 1 in 1085 mpr allergen defense extra 2 pack electrostatic pleated air filter.

Standard paper air filters are not the most efficient in allowing air circulation. A nominal size can have several different actual sizes. Measure the depth l x w x d. Which means they can ship out within 24 48 hours.

A high quality permanent washable air filter will outlast the life of your hvac system. The actual size is the exact dimensions with no rounding. Follow these 3 easy steps to accurately measure your air filter size. Standard paper air filters.

You need to replace these air filters every 15 000 miles on your car. You can easily wash and clean these air filters and reuse them over time without the need replace them. Filtrete 20 in x 20 in x 1 in basic pleated 3 pack pleated air filter. Whereas the nominal size is the rounded dimensions of the filter.

Slight variances in size may make a difference in certain situations. However you may be able to find the same stock size online by a different. Measure the length. A 16 x 20 filter will have actual dimensions of 15 1 2 x 19 1 2.

This is completely normal and is the standard in air filter manufacturing. These air filters require cleaning every 50 000 miles. The higher the mpr the more microparticles such as pollen pet dander smoke bacteria and viruses your filter will capture from the air passing through it.