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16x25x5 MERV10 X8309 Lennox Filter (Genuine Brand):


  • Filter dimensions: 16" x 25" x 5"
  • MERV 10
  • Expandable Filter Kit

Lennox X8309 (HCXF20-10) Expandable Replacement Filter - 16x25x5 (Actual Size of Assembled Frame - 15-3/4" X 24-3/4" X 4-7/16") This Original Lennox Healthy Climate expandable media filter is rated at MERV 10 and removes up to 85% of particles, down to 3 microns.  This filter must be used with plastic frame.  The plastic frame is NOT included with this filter.  If you have accidentially thrown away your plastic frame  - you can purchase a new kit - # X8303 .NOTE: Plastic frame gets re-used.  When changing filter - replace media but do not discard plastic frame.Features: Factory Original Healthy Climate product MERV 10 Efficiency Rating Removes up to 85% of particles, down to 3 microns, including pollen, dust and dirt, pet dander, dust mites, mold/fungi Space-saving expandable filter Expandable media air filter - ships like a collapsed accordian and is expanded into existing frame, which is assembled around the filter Easy-to-follow directions printed on side of filter carton Change filter ever 9-12 months, depending on environment Fits:Lennox Model HCC16-28 Healthy Climate Air Cleaner CabinetLennox HC10 Healthy Climate Media Air Cleaner Cabinets - 16x25Honeywell F25A1043, F25F1042, F35F1008, F100F1012, F150E1026, F150E1029 Air Cleaner CabinetsBryant/Carrier EZXCAB016, MACA016, MPKA016, FILCAB016 Air Cleaner CabinetsReplaces:Lennox HCXF16-10 FilterLennox HCF16-10 FilterLennox X8309 FilterLennox X6670 FilterHoneywell FC35A1001, FC100A1029 FiltersBryant/Carrier FILBBCAR0016, FILCCCAR0016, FILXXCAR0016 Filters




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Nominal Vs. Actual Sizes: Finding the Right Air Filter Size

Buying the Correct Size Air Filter- The Most Important Thing to Know 

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.

Nominal vs Actual air filter size by Atomic

 

Understanding Nominal Filters Size Could Save You Time and Money

Not understanding the Nominal Filter Size is the primary culprit for incorrectly purchased filters.The Nominal Size are 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 the in the product title.

Actual Filter Size- The Key to Making the Right Replacement Filter Purchase

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 size and that it also has the foam to insure a snag fit. 

Lennox Air Filter X0851 with Foam strips

Examples of Nominal and Actual Sizes

 Size  Example 1  Example 2
Nominal Size 20x20x1 16x20x1
Actual Size 19.5x19.5x.75 15.75x19.75x.75

 

 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.

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