Listed are standard size 1 inch, 2 inch and 4 inch depth air filters for your AC, Furnace, HVAC at Atomic Filters. We also offer custom size filters. Select the size to see a collection of filter for that size. Need to know more about MERV ratings check out our air filter knowledge page. Filter are usually listed by the Nominal Size which is a rounded number, based off of the true dimensions of the filter which are called the "actual size".
Lennox X6673 MERV 11 also know as the HCF20-10 (previously MERV 10) or the HCF20-11 is the correct replacement filter for the Lennox HCC20-28.
The Lennox X6673 20x25x5 actual size: 19 3/4 x 24 2/4 x 4 3/8 can also replace the following Brands Air Cleaner Filters.
Whirlpool Model 1183054k HEPA Filter Large is the correct replacement HEPA filter for the AP45030k, AP51030k, WP500, WP1000.
In Addition to the AP450 AP510 WP500 and WP1000, the 1183054 also fits legacy Models AP350 and Ap300. Complete Model List: Whispure AP3003VK, AP35030H, AP45030H, AP45030K, AP45030R, AP45030S, AP4503VK, AP51030H, AP51030K, AP51030L, AP51030R, AP51030S Air Purifiers.
Whirlpool Model 8171434K Carbon Pre-Filter Large 4 pack is the correct replacement pre-filter for the AP450 AP510 WP500 and WP1000. The 8171434 also fits legacy Models AP350 and Ap300. Complete Model List: Whispure AP3003VK, AP35030H, AP45030H, AP45030K, AP45030R, AP45030S, AP4503VK, AP51030H, AP51030K, AP51030L, AP51030R, AP51030S Air Purifiers.
Whirlpool Model 1183054k HEPA Filter Large is the correct replacement HEPA filter for the AP450 AP510 WP500 and WP1000. The 1183054 also fits legacy Models AP350 and Ap300. Complete Model List: Whispure AP3003VK, AP35030H, AP45030H, AP45030K, AP45030R, AP45030S, AP4503VK, AP51030H, AP51030K, AP51030L, AP51030R, AP51030S Air Purifiers.
For more information on the AP51030k please check out the manual.
Genuine OEM Lennox Corporation X0584 16x26x5 Nominal Size MERV 11 AIR FILTER
Lennox Part # X0587 is a Genuine OEM Lennox MERV 10 replacement filter - Fits Lennox model #BMAC-20CE.
X6673 Original Filter Sale by Atomic Features great pricing on 1 pack and 2 packs of the X6673 20x25x5 MERV 11 Original Filter Replacement HCF20-16 starting at $31.99. Atomic also carries a high quality compatible made in the USA sold as a 2 pack for 49.95.
Lennox makes superior quality air filters. Atomic Filters stocks an extensive selection of the Lennox brand furnace filters including the popular Lennox X6673 MERV 11 air filters. The X6673 also known as the X6673 Air Cleaner Filter Media for HCC20-28 - 20x25x5 is compatible with a wide variety of systems including Honeywell, Trion Airbear and Carrier.
When you are buying your air filter online most important thing to know is Air Filters have two sizes that you need to understand the Nominal size and the Actual Size. Not understanding these numbers often leads to consumers purchasing a filter that does not fit their Furnace or HVAC system.
Not understanding the Nominal Filter Size is the primary culprit for incorrectly purchased filters.The Nominal Size is the usually the dimensions used to Label the filter. For instance 16x20x1. These dimensions are a rounded value on the filters actual measurements. The actual measurements on this filter may be 15.5x19.5x.75, but that could vary by brand and manufacturer. So in order to make sure you have the correct size filter, especially if you are replacing with a different brand it is important to confirm the actual size on the filter. When purchasing filters on the internet the Nominal size is usually found in the product title.
The actual size as you might have guessed are the actual dimensions of the filter by length, width and thickness. This size is often on the filter right below the Nominal size and is usually labeled as the actual size. When you are buying a filter online the actual size is sometime in the product bullet point or the product description. If your filter does not have actual dimensions on the outside of the filter, you can measure you filter to get the correct dimensions. Some brands have a foam gasket on the outside of the filter, in this case, you will want to make sure you have a compatible actual size and that it also has the foam to ensure a snug fit.
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Furnace filters should fit securely but should not have to be forced into position. If you have to force the filter into its slot, then it is probably too big. Forcing an improper filter size in a filter can cause it to buckle, damaging the filter or reducing its ability to function properly. Filters are a smaller than their slot to allow for easy replacement. Some HVAC units may need a filter with dimensions that are unique or uncommon. In these cases, a custom filter needs to be ordered.