Normal Air Filter Size

Measure the depth l x w x d.

Normal air filter size.

Follow these 3 easy steps to accurately measure your air filter size. These air filters require cleaning every 50 000 miles. Which means they can ship out within 24 48 hours. 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.

Actual size is the true size of your filter. However you may be able to find the same stock size online by a different. Most standard air filter sizes are kept in stock. Filtrete 20 in x 25 in x 1 in 1085 mpr allergen defense extra 2 pack electrostatic pleated air filter.

A high quality permanent washable air filter will outlast the life of your hvac system. Standard paper air filters are not the most efficient in allowing air circulation. A nominal size can have several different actual sizes. Measure the length.

Your filter s mpr microparticle performance rating indicates its ability to capture tiny particles between 0 3 and 1 micron in 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. Filtrete 20 in x 20 in x 1 in basic pleated 3 pack pleated air filter. 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.

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. 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. Nominal size is the printed labeled or rounded size of the filter.

For pricing and availability. Whereas the nominal size is the rounded dimensions of the filter. Standard paper air filters. This size will be displayed on the air filter.

You can easily wash and clean these air filters and reuse them over time without the need replace them. Sometimes the size is written on the air filter in which case you can just head to the store or shop here and get the one that s the same size. Slight variances in size may make a difference in certain situations. Take a look at our dusteater and lifestyle series.

This is not the true size of your filter. The actual size is the exact dimensions with no rounding. Furnace filters come in a range of sizes and different brands and types of furnaces use different filters.