How to Determine the Size of an Air Filter

Are you looking for the right size air filter for your home? It can be confusing to figure out the size of an air filter, but it doesn't have to be. In this article, we'll explain how to determine the size of an air filter and what to look for when buying one. The first step in determining the size of an air filter is to check the dimensions of the air cleaner. Most filters are labeled with two size measurements that can be found along the side of the filter.

To measure, take the length and width (L x W). If the filter is not square, the smallest measurement goes first. In addition, most air filters have their size printed on the side of the frame. The length, width, and depth of the filter are measured in inches.

For example, it will say something like “16x25x1”, where 16 is the length, 25 is the width, and 1 is the depth. The dimensions indicated on the side of the air cleaner frames and printed larger on the air cleaner package are usually the nominal size dimensions. These measurements indicate the length, height, and depth (thickness) of the air cleaner, rounded to the nearest inch. An example of nominal dimensions would be 16 x 24 x 1.When you take measurements of an air filter, you just need to round the nearest inch to find the dimensions of the filter you need to buy.

Most major retailers, such as Walmart, Target, and Home Depot, offer air cleaners with a variety of options and brands to choose from. If it is easy to access, measure the slot in the air cleaner housing or refer to your oven's operating manual for more information. It's important to note that most disposable air filters are discounted (this is an industry standard) between ¼ and ½. Always open the air cleaner grille to take the measurement; do not assume that the inside measurement is the same as the outside.

For common brands of HVAC systems such as Goodman, Lennox, Trane, Rheem York, Coleman and Carrier, most standard air filter sizes will work. There are several great options to buy air filters online and have them delivered conveniently to your door. To find out what size pleated filters are used in your home, you don't need to look any further than your existing filters. If your return grille is in the ceiling, you may prefer to use a filter that has a slightly larger actual size so that it doesn't fall on you when you open up the vent. Proper maintenance will maintain good air quality in your home, increase your system's lifespan, and consume less energy - reducing your bills.

Rensa Filtration is a family of air filtration companies that manufacture and market best-in-class solutions that keep people safe and industries thriving. In conclusion, determining the proper size of an air filter can be confusing but it doesn't have to be. By following these steps and measuring carefully you can easily find out what size filter you need for your home.

LaDonna Uccio
LaDonna Uccio

Devoted food advocate. General internetaholic. Extreme beer aficionado. Devoted social media maven. Lifelong tvaholic.

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