Normal Air Filter Size

However you may be able to find the same stock size online by a different.

Normal air filter size. 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. A high quality permanent washable air filter will outlast the life of your hvac system. 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.

Standard paper air filters. Filtrete 20 in x 25 in x 1 in 1085 mpr allergen defense extra 2 pack electrostatic pleated air filter. 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.

Standard paper air filters are not the most efficient in allowing air circulation. These air filters require cleaning every 50 000 miles. Furnace filters come in a range of sizes and different brands and types of furnaces use different filters. Measure the length.

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. Measure the depth l x w x d. For pricing and availability.

It is usually a rounded size for example 16x20x1. All filters have an actual size and then a nominal size. 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. This is completely normal and is the standard in air filter manufacturing.

A 16 x 20 filter will have actual dimensions of 15 1 2 x 19 1 2. Actual size is the true size of your filter. The actual size is the exact dimensions with no rounding. Take a look at our dusteater and lifestyle series.

This is not the true size of your filter. A nominal size can have several different actual sizes. 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. This size will be displayed on the air filter.

Slight variances in size may make a difference in certain situations. Most standard air filter sizes are kept in stock. Follow these 3 easy steps to accurately measure your air filter size.