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  Our Catalog   Furnace Filters

Furnace Filters - Huge Savings! Save up to 20%


Huge Savings! Up to 20% off on Furnace Filters at Frontier Science. Top brands include Boair, FilterBuy, Accumulair, Honeywell, 3M, HEALTHFUL HOME, Lennox, Nordic Pure, GeoPure, Flanders, Filtrete, Tier1, Fasco, Aerostar, & Bryant/Carrier. Hurry! Limited time offers. Offers valid only while supplies last.



30x30x2 Permanent Washable Ac Furnace Air Filter - Lifetime Warr - Great for Geothermal
30x30x2 Permanent Washable Ac Furnace Air Filter - Lifetime Warr - Great for Geothermal
In Stock
$103.99

mpn: BA303002,

This filter is exactly 1-3/4 inch thick and comes in 2 size variations: 30 x 30 x 1-3/4 Actual Size -or- 29-1/2 x 29-1/2 x 1-3/4 Actual Size Please contact us through Amazon messages after purchase to confirm the exact size you need. Why spend $...


AFB Gold MERV 11 20x25x4 Pleated AC Furnace Air Filter. Pack of 6 Filters. 100% produced in the USA.
AFB Gold MERV 11 20x25x4 Pleated AC Furnace Air Filter. Pack of 6 Filters. 100% produced in the USA.
In Stock
$100.93

mpn: AFB20x25x4M11pk6,

The AFB Gold MERV 11 furnace / air filter is recommended for home or business owners that have pets as it is specifically designed to filter particles as tiny as one micron, including pet dander, lint & dust, dust mite debris, pollen and mold spores,...


Accumulair Diamond 20x25x4 (19.5x24.5x3.75) MERV 13 Air Filter/Furnace Filters (6 pack)
Accumulair Diamond 20x25x4 (19.5x24.5x3.75) MERV 13 Air Filter/Furnace Filters (6 pack)
In Stock
$118.93

mpn: FD20X25X4_6, ean: 0886566151406,

The Accumulair Diamond with its MERV 13 rating is one of the highest efficiency filters on the market! Great for helping reduce airborne allergens such as bacteria, particles that carry viruses, pollen, mold spores, fine dust, and pet dander. Accumul...


UV Bulb UC100E1030 Honeywell (Genuine Brand):
UV Bulb UC100E1030 Honeywell (Genuine Brand):
In Stock
$103.12
UV Bulb UC100E1030 Honeywell (Genuine Brand):...


Filtrete Ultra Allergen Furnace Air Filter [Set of 6] Size: 20'' H x 16'' W x 1'' D
Filtrete Ultra Allergen Furnace Air Filter [Set of 6] Size: 20" H x 16" W x 1" D
By 3M
SKU: #491926
In Stock
$172.82
$137.42
You Save: 20%

sku: 491926, mpn: 2000DC-6, ean: 0051111020005,

4.0 out of 5 stars with 36 reviews
2000DC-6 Size: 20" H x 16" W x 1" D Features: -Ultra allergen furnace filter. -1250 Performance rating. -90% Effective at capturing large allergens like mold and pet dander. -Captures micro allergens like dust and smoke. -Captures bacteria and partic...


Healthful Home Mold Magnet - HVAC Filter Enhancer
Healthful Home Mold Magnet - HVAC Filter Enhancer
In Stock
$207.18

mpn: HH7500, ean: 0859098003192,

Another breakthrough product brought to you by Healthful Home. Laboratory-proven to improve your HVAC & Furnace filter capture rate for biological microbes in your home or office. MOLD MAGNET has been field-tested to demonstrate increased capture of ...


Lennox X6669 MERV 16 Filter - 21'' x 26'' x 4'' - Genuine Lennox Product
Lennox X6669 MERV 16 Filter - 21" x 26" x 4" - Genuine Lennox Product
In Stock
$114.95

mpn: X6669,

The Lennox X6669 Healthy Climate PureAir replacement filter uses a MERV 16 pleated filter to capture extremely small airborne particles. Dimensions: 21" x 26" x 4" In most home environments, this filter only needs to be replaced every 6 month...


Honeywell FC100A1011-5pk 20'' x 20'' x 5'' Merv 11 Replacement Filter (Pack of 5)
Honeywell FC100A1011-5pk 20" x 20" x 5" Merv 11 Replacement Filter (Pack of 5)
In Stock
$177.17

mpn: FC100A1011-5pk, ean: 0755897386224,

New MERV 10 (at 492 FPM) performance with lower pressure drop at no additional cost.20X20 Media Air Filter-MERV 10. Efficiency ratings are based on American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 52.2 1999. Efficien...


Nordic Pure 24x30x1M13-6 24x30x1 MERV 13 Pleated AC Furnace Air Filter, Box of 6, 1-Inch
Nordic Pure 24x30x1M13-6 24x30x1 MERV 13 Pleated AC Furnace Air Filter, Box of 6, 1-Inch
In Stock
$108.71
$96.99
You Save: 11%

mpn: 24x30x1M13-6, ean: 0816387011597,

4.5 out of 5 stars with 50 reviews
The Nordic Pure MERV 13 anti-allergen pleated air filter is the ideal filter to reduce airborne contaminants in your home or business. With each pass through your MERV 13 air filter, the air in your environment improves. This electrostatic air filter...


30x36x2 MERV 11 GeoPure Geothermal Air Filter (pack of 4)
30x36x2 MERV 11 GeoPure Geothermal Air Filter (pack of 4)
In Stock
$101.99

mpn: GP1130362-4, ean: 0859761005270,

GeoPure filters are manufactured specifically for geothermal heat pumps. All GeoPure filters are manufactured with single piece construction making them stronger and improving air flow. Multi-staged, electrostatically charged filtration media is bond...


NaturalAire Cut-to-Fit Natural Fiber Air Filter, MERV 4, 24 x 36 x 1-Inch, 12-Pack
NaturalAire Cut-to-Fit Natural Fiber Air Filter, MERV 4, 24 x 36 x 1-Inch, 12-Pack
In Stock
$125.69
$124.97

mpn: 40655.012436,

The Flanders NaturalAire Cut-to-Fit Natural Fiber Air Filter is an ideal replacement for any hard to find specialty filters. Easily cut the 24-inch by 36-inch filter to size with shears or a razor knife. This air filters holds its shape and requires ...


AFB Platinum MERV 13 18x30x1 Pleated AC Furnace Air Filter. Pack of 6 Filters. 100% produced in the USA.
AFB Platinum MERV 13 18x30x1 Pleated AC Furnace Air Filter. Pack of 6 Filters. 100% produced in the USA.
In Stock
$100.93

mpn: AFB18x30x1M13pk6,

The AFB Platinum MERV 13 furnace / air filter is a best in class, hospital grade filter. The Platinum filter by AirFilterBuy offers the best level of filtration possible while still allowing a traditional residential or business HVAC unit to function...


AFB Gold MERV 11 14x24x1 Pleated AC Furnace Air Filter. Pack of 12 Filters. 100% produced in the USA.
AFB Gold MERV 11 14x24x1 Pleated AC Furnace Air Filter. Pack of 12 Filters. 100% produced in the USA.
In Stock
$100.57

mpn: AFB14x24x1M11pk12, ean: 0717267101165,

The AFB Gold MERV 11 furnace / air filter is recommended for home or business owners that have pets as it is specifically designed to filter particles as tiny as one micron, including pet dander, lint & dust, dust mite debris, pollen and mold spores,...


18x18x1 3M Filtrete Ultra Allergen Filter (6-Pack)
18x18x1 3M Filtrete Ultra Allergen Filter (6-Pack)
SKU: #FILTRETE-ULTRA-18x18x1-6-PACK
In Stock
$109.01

sku: FILTRETE-ULTRA-18x18x1-6-PACK, mpn: 2017DC-6, ean: 0700355928928,

3M Filtrete Ultra Allergen air conditioner and furnace air filters size 18x18x1 MERV 11 (6-Pack) are built to promote better airflow throughout your home, while significantly reducing some of the more harmful airborne contaminants. For up to three mo...


20x20x5 Honeywell Replacement MERV 14 Plus Carbon AC Furnace Air Filters Qty 4
20x20x5 Honeywell Replacement MERV 14 Plus Carbon AC Furnace Air Filters Qty 4
In Stock
$198.93

mpn: 20x20x5HM14+C-4, ean: 0848224050612,

The MERV 14 Plus Carbon air filter is a convenient pleated air conditioner furnace filter that has been impregnated with activated carbon and will help to eliminate unwanted pet and home odors as well as reduce the dust in your home or office. with e...


14x24x4 Filtrete Dust & Pollen Comparable Air Filter MERV 8 - 6PK
14x24x4 Filtrete Dust & Pollen Comparable Air Filter MERV 8 - 6PK
In Stock
$101.62

mpn: P85S-041424, ean: 0700355938415,

Our Tier1 P85S.641424 14x24x4 MERV 8 Air Filters (6-pack) are pleated high-capacity filters constructed using electrostatically charged filter media from Kimberly-Clark - a recognized leader in the filtration industry. This 100% synthetic material of...


Fasco W4 115-Volt 3300 RPM Furnace Draft Inducer Blower
Fasco W4 115-Volt 3300 RPM Furnace Draft Inducer Blower
In Stock
$215.12

mpn: W4, ean: 0663001429494,

For nearly a century, Fasco has been designing and manufacturing what has become the industry's most respected line of AC motors and blowers. Many of the new energy-efficient gas furnaces use induced draft blowers to control flue gas. All induced dra...


21 1/2 x 23 3/8 x 1 AC and Furnace Air Filter by Aerostar - MERV 13, Box of 12
21 1/2 x 23 3/8 x 1 AC and Furnace Air Filter by Aerostar - MERV 13, Box of 12
In Stock
$107.23

mpn: 21 1/2x23 3/8x1 MERV 13, ean: 0709257242163,

21 1/2x23 3/8x1 AC and Furnace Air Filter by Aerostar - MERV 13, Box of 12 Pleated MERV 13 Media Comparable to MPR 1500 to 1900 and FPR 10  Designed for Superior Filtration Efficiency Made with electrostatically charged synthetic material that draws...


Bryant / Carrier Air Purifier Cartridge - PGAPXCAR2020
Bryant / Carrier Air Purifier Cartridge - PGAPXCAR2020
In Stock
$158.69

mpn: PGAPXCAR2020,

PGAPXCAR2020 Air Purifier Cartridge - 2-Pack (AKA PGAPAXX2020-A02) GENUINE OEM factory orginal Bryant/Carrier filtering media for Bryant Perfect Air Purifier - model PGAPAXX2020 The Carrier Performance Germicidal Air Purifier both captures and kill...


Accumulair Platinum 20x25x4 (19.5x24.5x3.75) MERV 11 Air Filter/Furnace Filters (6 pack)
Accumulair Platinum 20x25x4 (19.5x24.5x3.75) MERV 11 Air Filter/Furnace Filters (6 pack)
In Stock
$100.93

mpn: FA20X25X4_6, ean: 0886566142879,

Uniform pleat shape enhances dust holding capacity and maximizes air flow. Heavy duty construction frame prevents airflow bypass.Nominal size is 20x25x4. Actual size is 19.5 x 24.5 x 3.75.. MERV 11 Rating. Uniform pleat shape enhances dust holding ca...



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