How to Find the Right Air Filter Size for Your Home

Finding the right air filter size for your home can be a daunting task. It's important to get the right size, as an incorrectly sized filter can put excessive strain on your HVAC system, damage it and increase your energy bills. Fortunately, there are a few easy ways to determine the size of air filter you need. Usually, the filter size is printed along the edge of the filter frame.

Note that the size shown in bold type on the filter frame is the nominal size of the filter, which is likely to differ from its actual size. To find the size of the pleated filters used in your home, you don't need to look any further than existing filters. On the outer frame, you will see at least one numbers game. If you see two sets of numbers, the filter size needed to order replacements is the nominal size, not the actual size.

You can ignore the actual size printed on the filter for this task, since the nominal size is the number needed to order new filters. There is one more thing you should know about filter sizes. The dimensions shown in the filter are not the exact size. This is a rough estimate that is closer to the size of the filter compartment. The easiest way to find out what filter size you should get for your oven is to simply remove the current filter and look at its dimensions.

They are usually printed along one side of the filter. If it isn't, the best way to determine the size you need is to measure the filter that's already there, assuming it's the correct size. When you buy air filters, you will see the words “nominal size” and “actual size” together. Once you know the size of the old air filter, you can easily buy a new filter with the same dimensions. Most air filters are located on the right or bottom of the unit and should be easily removed from the slot. Keep in mind that some HVAC systems require more than one air filter, so make sure you have the correct measurements for all of them.

Here's a fun fact: 70% of what Filterbuy sells is out of the 10 most common air filter sizes. The construction of a custom air conditioner or oven filter allows you to choose specific dimensions if standard sizes don't work for you. Most people won't be able to find the size of air filter they need at their local home improvement store. I had bought the wrong size filter and you guys did everything you could to get me the right ones. Finding an air filter with just the right dimensions for your home doesn't have to be a difficult task. With a few simple steps and measurements, you can easily find an air filter that fits your needs and keeps your HVAC system running smoothly.

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