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Armstrong Furnace Filters Replacements

Merv12 Furnace Filters
One Inch
Two Inch
Four Inch
Five Inch
Six Inch Combo

Custom Filters

Replacement Honeywell / Media
FC100A1029 /

FC100A1011 /

FC100A1037 /

Air Gage

Air Vent

Box Fan Filters

Ceiling Fan Filter

Window Air Screens

Air Fresheners
Scented Filter Pads
Spray Fragrances













Armstrong Furnace Filters Replacements   Made in USA

Nordic Pure’s many years of replacement air filters manufacturing have enabled us to manufacture Armstrong furnace filters replacements that are about the same price as off-the-shelf filters from competitors. The biggest difference is that the media material is much higher in quality and has a frame around the material and the media is attached to the frame with a support material insuring there are no collapsed filters.  While we know that Armstrong creates a great filter, we at Nordic Pure want to offer a great economical substitute with our filters!

Nordic Pure’s Armstrong furnace filters replacements do not allow for the growth of mold or bacteria, keeping your home healthier. No harsh chemicals are necessary to make our filters "antibacterial". Our filters use a permanently charged electrostatic material that helps dust cling to the air filters.

We manufacture just about any size replacement air filters in 1”, 2”, 4”, 5” or 6” thickness. We now have a built-in calculator in our website for your convenience. This website allows you to input your dimensions and you are given a quote within seconds of entering your air filters information. The printed size on the side of your filters may be the nominal size so it is best to physically measure your filters with a ruler or tape to get the EXACT measurements of your air filters within 1/8 of an inch on the length and width. Consult your HVAC system’s operating manual for information. Custom filters are not refundable/returnable so please make sure you order the correct size. Let us be your replacement air filters company.

Our Merv 12 anti-allergenic pleated Armstrong furnace filters replacements significantly reduce dust, mold spores, pet dander, pollen, smoke particles, and other indoor air contaminants by up to 97.8%. We'll not only improve your indoor air quality, but you may be able to dust less and your allergies may not be as bad since you have less indoor air pollutants. Our filter media has a permanent electrostatic charge and does not support the growth of bacteria, fungi, mildew or mold. Prices include FREE SHIPPING on replacement air filters. We manufacture any size 1", 2", 4" and 5” filters and Honeywell Filter Replacements for FC100A1037 air filters / FC200E1037 air filters (20x25x5 filters) and FC100A1029 air filters / FC200E1029 air filters (16x25x5 filters). We also make custom size air filters with fast and free shipping, so order your custom air filters today and see what better air filters can do for you.

For all of your filter needs, think of us first. Custom sized MERV 12 filters also available. Nordic Pure is very proud that we offer such an incredible product for a much lesser price than most.  The easiest way to contact us is to email us at:  If you need to contact us over the phone, call us at 972-382-2355 if you are in the DFW area.  Outside the DFW call Toll-Free 800-590-0339. 

Click on your size below or click CUSTOM Filters for size not listed:
1 inch
10x20x1,  11 1/2 x 11 1/2 x 112x12x112x18x112x20x1,  12x24x114x20x114x24x114x25x1,  14x30x1, 15x20x1 16x16x1, 16x20x116x24x116x25x118x18x1,  18x20x118x24x118x25x1, 20x20x120x24x1, 20x25x120x30x124x24x124x30x1,  25x25x1

2 inch
10x20x212x20x212x24x214x20x214x24x214x25x215x20x216x16x216x20x216x24x216x25x218x18x218x20x218x24x218x25x2,  20x20x220x24x220x25x220x30x224x24x2 24x30x225x25x2

4 inch*
12x24x4,  16x20x4,  16x24x4,  18x24x4,  20x20x420x24x420x25x4,   24x24x4

5 inch Honeywell Replacement Media*
16x25x5,  20x20x5,   20x25x5

* Make sure you select the correct size. Some 4" and 5" filters are close but not the same. Look at our exact dimensions on our product details page. The size written on the side is usually the size of the opening, not the size of the filter. Measure to be sure!

Nordic Pure Air Filters Effectiveness


Nordic Pure Filter Convenience Factor

All of our air conditioner and furnace filters feature Ultra High-Efficiency reduction by employing a pleated filter with electrostatic charged synthetic media. The highly efficient electrostatic air filter media attracts dust and pollen like a magnet.

Nordic Pure AC filter and furnace filters capture 97.8% of the microscopic airborne dust, pollen, allergens, mold spores, pet dander, bacteria and particulates carrying bacteria and viruses in the air.

Premium performance construction with a high-dust holding capacity. Nordic Pure air conditioning filters and furnace filters exceed MERV 12 rating. (MERV 7 available upon request.)

Recommended replacement of furnace filters (including your vent register filters) is every 30 to 90 days for 1 inch filters and every 3 to 6 months for 4 inch and 5 inch.


1. Factory-Direct = Lower prices & Higher Quality

2. Convenience

  • FREE Delivery - No need to leave your home or office
  • FREE Email "Change your filter" reminder service to help protect your HVAC system
  • Fast delivery on Stock and Custom Filters
3. Made-to-fit Custom Filters
  • Select from a wide range of standard sizes including: 1", 2", 4", and 5" filters
  • Hard-to-find and custom / odd sized air filters in a variety of sizes
  • Low prices and fast delivery on all Nordic Pure standard and custom sizes

4. Manufacturer Direct since 1960!

5. Made in the USA


Our anti-allergenic Merv 12 pleated HVAC filters significantly reduce dust in home and reduce dust mites, mold spores, pet dander, pollen, smoke particles, and other airborne particulates by up to 97.8%. We'll not only improve your indoor air quality, but you may be able to have less dust in your home and your indoor allergy may not be as bad. Our filter material has a permanent electrostatic charge and does not support the growth of bacteria, fungi, mildew or mold. Prices include FREE SHIPPING.

If you don't see your size, we can also make your odd size air filter; just visit our Custom Filters page to order online. We can make almost any size with fast and free shipping, so order today. There's no comparison for the price! You will need the EXACT measurement of your filter since they are usually a fraction of an inch smaller than the size listed on side.

We look forward to hearing from you. Thank you for visiting Armstrong Furnace Filters Replacements.

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