When it comes to air filters, it's important to understand the difference between the nominal size and the actual size. The nominal size is the rounded value of the filter that is used to label it, while the actual size is the exact measurements of the filter. This is important to know when you are looking for a replacement filter, as using an incorrectly sized filter can put unnecessary strain on your air conditioning unit, potentially damaging it and increasing your energy bills. At Filter King, we offer a wide range of sizes for our high-quality air filters so you can find one that fits your needs perfectly. We recommend that you start your search for replacement air filters by limiting yourself to the depth of the air filter.
This is the easiest and most obvious way to find the size of your air conditioner filter, but not all filters have the size measurements listed on them. The length, width and depth of a filter are printed in small numbers along the filter frame, on the cardboard edge of a Filter King brand filter. When it comes to depth measurement, standard air filters typically have nominal sizes of 1 (0.75 inches), 2 (1.75 inches) and 4 (3.75 inches). The filter should be slightly smaller on each side of the groove in the filter housing, allowing you to slide it in and out with ease. If there are pets, children, or allergy sufferers in your home, you should change filters frequently to maintain indoor air quality. Great filters at a great price, they arrived in a few days, I will definitely buy my filters again.
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