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Furnace Filters - 132 - Blowout Sale! Save up to 64%


Blowout Sale! Up to 64% off on Furnace Filters at In The National Interest. Top brands include Filtrete, FilterBuy, Honeywell, Aprilaire, Lennox, AirFree, Everpure, Pure Water, Schaefer, Stufurhome, Dimplex, & Lennox Healthy Climate Solutions. Hurry! Limited time offers. Offers valid only while supplies last.



Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 12 x 24 x 1-Inches, 6-Pack
Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 12 x 24 x 1-Inches, 6-Pack
In Stock
$35.94
$27.48
You Save: 24%

mpn: 320DC-6, ean: 5272003691386,

320DC-6 Size: 24" H x 12" W x 1" D Features: -Ideal for high velocity equipment. -Attracts and captures household dust. -For residential use only. Product Type: -Air filter. Dimensions: Size 24" H x 12" W x 1" D - Filter Height - Top to Bottom: -24"....


Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 14 x 20 x 1-Inches, 6-Pack
Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 14 x 20 x 1-Inches, 6-Pack
In Stock
$24.74

mpn: 305DC-6, ean: 0051111020739,

305DC-6 Size: 20" H x 14" W x 1" D Features: -Ideal for high velocity equipment. -Attracts and captures household dust. -For residential use only. Product Type: -Air filter. Dimensions: Filter: -Yes. Size 20" H x 16" W x 1" D - Filter Height - Top to...


FilterBuy AFB Silver MERV 8 20x20x1 Pleated AC Furnace Air Filter.  Pack of 4 filters. 100% produced in the USA.
FilterBuy AFB Silver MERV 8 20x20x1 Pleated AC Furnace Air Filter. Pack of 4 filters. 100% produced in the USA.
In Stock
$27.60

mpn: AFB20x20x1M8pk4, ean: 0717267051675,

The AFB Silver MERV 8 furnace / air filter is the most commonly purchased replacement filter by FilterBuy. The AFB Silver filters pollen, mold, dust mites, and other particles that are up to the size of pudding mix that you might buy at the grocery s...


Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 20 x 30 x 1-Inches, 6-Pack
Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 20 x 30 x 1-Inches, 6-Pack
In Stock
$42.00
$28.05
You Save: 33%

mpn: 322DC-6, ean: 0051141992792,

322DC-6 Size: 30" H x 20" W x 1" D Features: -Ideal for high velocity equipment. -Attracts and captures household dust. -For residential use only. Product Type: -Air filter. Dimensions: Size 24" H x 12" W x 1" D - Filter Height - Top to Bottom: -24"....


Honeywell FC100A1037 Ultra Efficiency Air Cleaning Filter, 20X25-Inches (MERV-11)
Honeywell FC100A1037 Ultra Efficiency Air Cleaning Filter, 20X25-Inches (MERV-11)
In Stock
$41.99
$32.99
You Save: 21%

mpn: FC100A1037, ean: 0085267210201,

Honeywell FC100A1037 Ultra Efficient Air Cleaning Filter ensures performance and portability without the heightened levels in noise. Get a better breathing environment with reduced dust, pollen, tobacco and pet dander. Air purifier is an excellent ad...


Aprilaire 213 Healthy Home Air Filter for Aprilaire Whole-Home Air Purifiers, MERV 13, for Most Common Allergens (Pack of 1)
Aprilaire 213 Healthy Home Air Filter for Aprilaire Whole-Home Air Purifiers, MERV 13, for Most Common Allergens (Pack of 1)
In Stock
$57.85
$35.62
You Save: 38%

mpn: 213 A1, ean: 0885423439817,

A small change can make a big difference for the health of your home environment. Aprilaire delivers that difference with the Aprilaire 213 Healthy Home Filter. It removes common airborne allergens including dust, pollen, mold spores, bacteria, pet d...


Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 16 x 20 x 1-Inches, 6-Pack
Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 16 x 20 x 1-Inches, 6-Pack
In Stock
$24.49

mpn: 300DC-6, ean: 0051141992662,

300DC-6 Size: 20" H x 16" W x 1" D Features: -Ideal for high velocity equipment. -Attracts and captures household dust. -For residential use only. Product Type: -Air filter. Dimensions: Filter: -Yes. Size 20" H x 16" W x 1" D - Filter Height - Top to...


Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 20 x 20 x 1-Inches, 6-Pack
Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 20 x 20 x 1-Inches, 6-Pack
In Stock
$35.94
$24.74
You Save: 31%

mpn: 302DC-6, ean: 0051111020708,

302DC-6 Size: 20" H x 20" W x 1" D Features: -Ideal for high velocity equipment. -Attracts and captures household dust. -For residential use only. Product Type: -Air filter. Dimensions: Filter: -Yes. Size 20" H x 16" W x 1" D - Filter Height - Top to...


Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 20 x 25 x 1-Inches, 6-Pack
Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 20 x 25 x 1-Inches, 6-Pack
In Stock
$40.98
$28.74
You Save: 30%

mpn: 303DC-6, ean: 0051141992754,

303DC-6 Size: 25" H x 20" W x 1" D Features: -Ideal for high velocity equipment. -Attracts and captures household dust. -For residential use only. Product Type: -Air filter. Dimensions: Filter: -Yes. Size 20" H x 16" W x 1" D - Filter Height - Top to...


Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 16 x 25 x 1-Inches, 6-Pack
Filtrete Clean Living Basic Dust AC Furnace Air Filter, MPR 300, 16 x 25 x 1-Inches, 6-Pack
In Stock
$79.98
$28.74
You Save: 64%

mpn: 301DC-6, ean: 7566908043899,

301DC-6 Size: 25" H x 16" W x 1" D Features: -Ideal for high velocity equipment. -Attracts and captures household dust. -For residential use only. Product Type: -Air filter. Dimensions: Filter: -Yes. Size 20" H x 16" W x 1" D - Filter Height - Top to...


Lennox Y6610 Annual Maintenance Kit for PCO3-20-16 (4-Pack)
Lennox Y6610 Annual Maintenance Kit for PCO3-20-16 (4-Pack)
In Stock
$625.55

mpn: Y6610, ean: 0634934477821,

This is an authentic and brand new Lennox Y6610 Annual Maintenance Kit for PCO3-20-16 (4-Pack). This PureAir maintenance kit should be replaced every 12 months. It may need to be changed more frequently in situations with a large amount of dust or di...


Airfree P 3000 2 Pack Black Friday Special
Airfree P 3000 2 Pack Black Friday Special
In Stock
$598.00

mpn: P3000-2, ean: 0710928727063,

ONLY AVAILABLE FOR PURCHASE NOV 17-NOV 30 WHILE SUPPLIES LAST! Black Friday Special Airfree Onix P 3000 Twin Pack - Airfree P3000 Filterless air purifier is maintenance free and totally silent featuring the patented Thermodynamic TSS Technology gradu...


Lennox X8788 MERV 16 Filter (5 Pack)
Lennox X8788 MERV 16 Filter (5 Pack)
In Stock
$509.82

mpn: X8788,

Lennox X8788 (5 pack) Healthy Climate PureAir PCO20-28 MERV 16 replacement filter. Fits the PCO20-28 PureAir unit.The Lennox Healthy Climate PureAir replacement furnace filter uses a MERV 16 pleated filter to capture particles in the air stream.Dimen...


Lennox X6673 20x25x5 Merv 11 Filter Media (4 X Pack of 2)
Lennox X6673 20x25x5 Merv 11 Filter Media (4 X Pack of 2)
In Stock
$519.98

ean: 0646847246937,

MERV 16 UPGRADE AVAILABLE Lennox Model X6673 Air Cleaner Filter Media - 20" x 25" x 5" (2-Pack) FEATURES: Factory original BMAC Healthy Climate Media Electrostatically charged disposable media Captures dust mites, pollen, mold spores, pet dander and ...


Everpure EV9437-10 High Flow CSR Quad-MC2 System
Everpure EV9437-10 High Flow CSR Quad-MC2 System
In Stock
$899.59
$872.60
You Save: 3%

mpn: EV9437-10, ean: 0054568552822,

4.7 out of 5 stars with 32 reviews
INSTALLATION TIPS -Choose a mounting location suitable to support the full weight of the system when operating -Use 3/4 water line -Fountain equipment connections are made to the outlet part of the system before the SR-X system -Coffee brewer and ice...


AquaNui Countertop Water Distiller, Stainless Steel, Made in USA
AquaNui Countertop Water Distiller, Stainless Steel, Made in USA
In Stock
$549.00

mpn: 21798, ean: 0820103564991,

AquaNui CT is made in the USA. In fact, we are the only company producing an American-made stainless steel countertop distiller. The AquaNui CT produces 0.8 gal. per batch and fits snug in tight spaces. Like all AquaNuis, the CT features American-mad...


SCHAEFER VAF3000P Americ Pneumatic Confined Space Ventilator, Blade Material: Polypropylene, 11/2 hp, 12'' Diameter
SCHAEFER VAF3000P Americ Pneumatic Confined Space Ventilator, Blade Material: Polypropylene, 11/2 hp, 12" Diameter
In Stock
$917.99

mpn: VAF3000P,

Often imitated but never duplicated, Schaefer’s Americ confined space ventilators are the industry standard when it comes to providing safe and reliable ventilation in any confined space working environment. These blowers are rugged and reliable wh...


Stufurhome GM-Y01W 30.5-Inch Pure White Single Laundry Sink
Stufurhome GM-Y01W 30.5-Inch Pure White Single Laundry Sink
In Stock
$862.15
$684.65
You Save: 21%

mpn: GM-Y01W, ean: 0856569005945,

4.1 out of 5 stars with 25 reviews
This all-in-one laundry single sink vanity, embellished in a pure white finish, is a masterful combination of simplicity, functionality and charm. The deep rectangular sink, spacious storage and drawers definitely fulfill the needs of modern day livi...


Dimplex BF33DXP 33-Inch Built-In Electric Firebox
Dimplex BF33DXP 33-Inch Built-In Electric Firebox
In Stock
$799.00

mpn: BF33DXP, ean: 0781052045781,

Dimplex invented the modern electric fireplace and continues to lead the way with exclusive technologies that dazzle the eye and seduce the senses. Our patented 3D effect gives the fire its depth and dancing flames and it is something you can only fi...


X6675 Lennox 20x25x5 MERV 16 Filter Media for HCC20-28 (5 Filter)
X6675 Lennox 20x25x5 MERV 16 Filter Media for HCC20-28 (5 Filter)
In Stock
$999.99

mpn: X6675, ean: 0685450723176,

Lennox Healthy Climate MERV 16 Media Air Cleaner. High-efficiency media filter (MERV 16/CADR 1900.Up to 95% efficiency in removing circulated dust and other particles from 3 microns and up to 95% efficient in removing mold spores and other bioaerosol...



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