Shop All Air Filter Sizes

Shop HVAC Air Filters by Size

Find the right replacement air filter for your home or business by browsing our complete selection of HVAC and furnace filter sizes. FilterHome offers popular 1-inch, 2-inch, 4-inch, and 5-inch air filters in a range of filtration levels, pack quantities, and replacement schedules.

Choose your exact filter size, then select the filtration level that best fits your indoor air quality needs. Available options include MERV 8 for dependable everyday filtration, MERV 11 for enhanced dust and pet dander capture, MERV 13 for high-efficiency filtration, and activated-carbon Odor Eliminator filters.

Find Your Exact Air Filter Size

Your filter’s size is typically printed along the cardboard frame of your current air filter. Search using the full nominal size, such as 20x20x1, 16x25x1, 20x25x4, or 16x20x5. Be sure to include the width, height, and depth when choosing your replacement.

Can’t find the dimensions you need? FilterHome also manufactures custom-size air filters for uncommon HVAC systems, return vents, commercial equipment, and specialty applications.

Our replacement air filters are manufactured on Long Island, New York, and ship free throughout the United States. Shop by size below and find the right filter for cleaner indoor air.

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FilterHome Custom Air Filter
CUSTOM FILTERS

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