What Is The Most Common Size Furnace Filter

This rounded measurement is referred to as the nominal size and is used to match the right filter to its fitting air filter slot.

What is the most common size furnace filter.

If you removed an old filter check its size so you can be sure you have the correct filter for replacement. While we do offer standard air filter sizes we also offer custom sizing on all of our air filters. This type is probably the most common. Which means they can ship out within 24 48 hours.

There are a few places your filter could be located. Furnace filters come in a range of sizes and different brands and types of furnaces use different filters. Don t overlook the importance of furnace filter replacement. Most residential filters range from 4 to 12.

What is the most common size furnace filter. How much you want to spend what you re trying to filter and how diligent you are about changing the filter are all considerations. The size of your filter will be located on the side of the door on your filter cabinet. By using the nominal size you can order a new air filter that slides in and out of place with ease.

The most typical sizes for a furnace filter are 16 x 20 20 x 25 and 16 x 25 however many other sizes are available for purchase on our site. The most common ac filter sizes and furnace filter sizes are the 16x20x1 air filter 20x20x1 air filter the 16x25x1 air filter and the 20x25x1 air filter. Your brand of furnace may need an electrostatic o r media filter of a specific size. The minimum efficiency reporting value merv scale goes from 1 to 16.

Note the size printed on the air filter frame. Most hvac systems use a standard 1 inch thick filter so we focused exclusively on 1 inch medium efficiency merv filters. Take a look at our dusteater and lifestyle series. Determining the furnace filter size is the first step in purchasing a new filter.

The filter must fit snuggly in your furnace. Most standard air filter sizes are kept in stock. The quickest way to find the size of your filter is to get it off of the old one. Look at the old furnace filter to see which size and type it uses.

The choice of which furnace air filters to buy for your furnace depends many things. All of these ac filter sizes can be found in the air filter size chart. There are different types of furnaces but most use a common furnace filter size so before replacing your filter you need to know w hich size and type you need. These are installed either in wall mounted air return vents most common.

Install the new air filter. A 16 x 20 filter will have actual dimensions of 15 1 2 x 19 1 2. An up flow furnace as the name implies pushes the warm air up. If you have any questions about the size you need you can refer to the owner s manual for your furnace or air handler or contact your local lennox dealer.