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14x20x1
Pleated MERV8
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16x20x1
Pleated MERV8
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16x20x1
Pleated MERV11
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16x25x1
Pleated MERV8
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16x25x1
Pleated MERV11
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20x20x1
Pleated MERV8
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20x25x1
Pleated MERV11
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16x25x4
Pleated MERV11
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16x25x5
Pleated MERV11
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How To Find Your Air Filter Size
Check the label on your current filter or use a tape measure to determine the length, width, and thickness. Just make sure you know the difference between nominal and actual size.
FILTER
📏 Nominal Size
The rounded size printed on the filter label. This is what you use when ordering — it's not the true physical size of the filter.
📐 Actual Size
The true physical size of the filter, usually printed in smaller font below the nominal size. Always slightly smaller than nominal.
📏 Measuring
Measure your current filter or the slot opening. Round up to the nearest whole inch to get the nominal size for ordering.
Pro Tip: Always order by nominal size, not actual size. For example if your filter measures 15.5" x 24.5" x 0.75", order the 16x25x1.
Can't find your size?
We carry hundreds of filter sizes. If you don't see yours listed,
contact us and we'll help you find the right fit.
Why Choose Us?
Fast & Free Shipping OEM-Quality HVAC Air Filters No More Guessing on Sizes
HOW TO CHOOSE THE RIGHT HVAC AIR FILTER FOR YOUR HOME
To choose the right size air filter, check the size printed on your old filter (length x width x depth), or you can measure the filter frame for the dimensions and round up to the nearest inch for the nominal size. You want to make sure the filter fits snugly in the slope without gaps. Many homes use common HVAC Filter sizes such as a 16x20x1, 16x25x1 or a 20x20x1 filter, which are available in multiple MERV Ratings. Click HERE to learn more about MERV Ratings.
HOW TO REPLACE YOUR HVAC AIR FILTER
Replacing your air filter is a quick task. Just turn off your system, remove the old filter and install the new filter with the arrow pointing towards the unit. If you have a filter in the return vent, unlatch or unscrew the cover, slide out the old filter and insert new filter with the arrow pointing into the duct.
Need Air Duct Cleaning?
***Only Available For Our Georgia Customers***