Best Foam Furnace Filters in 2026

MAKE YOUR HOME YOUR SANCTUARY: 2-pack of 12-month pleated 4” Filtrete 16x25x4 MPR 1000 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment

DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter’s exact dimensions are 15.88 x 24.56 x 4.31

EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through

Nominal size: 16x25x4; Actual size: 15 1/2"x24 1/2"x3 3/4"; This MERV 11 filter is comparable with MPR 1000-1200 & FPR 7.

Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, and smoke

Simple to install and a cost-effective step towards a healthier home environment. Replace 3"-5" filters every 3-6 months.

OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. air filters for your furnace, air conditioner or HVAC system

DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through

ATTRACTS AND CAPTURES large particles such as lint, household dust and dust mite debris

OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system

DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through

ATTRACTS AND CAPTURES particles such as lint, pollen, dust, pet dander, smoke and smog

16x25x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 15.50" x 24.50" x 0.75")

MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow

High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products lifespan by 3 times that of fiberglass models

Nominal Size: 16-Inch by 25-Inch by 5-Inch

Actual Size: 15-3/4-Inch by 24-3/4-Inch by 4-3/8-Inch

Nordic Pure brand replacements for Honeywell units

ENHANCED AIR FILTRATION: Our 16x25x1 air filters are made using an advanced pleated technology that offers more air coverage, better particle capture performance and helps extend the life of your furnace, air conditioner, or HVAC system. Our pleats are designed with wire backed synthetic media. Our 16x25x1 air filters are also made using high quality CNK coated beverage boards.

NEVER WORRY ABOUT YOUR AIR AGAIN: Nobody wants to think of the air they are breathing. Therefore the most prestigious accomplishment a filter can make is to ensure that you are not worrying about the purity of your air. Our Crisp 16x25x1 MERV 11 furnace filters are the ideal choice for anyone wanting clean, crisp air in their home. Our MERV 11 air filters trap debris, allergens such as pollen, dust, pet hair, auto exhaust particulates, and smoke - so you only breathe pure and crisp air.

TOP TIER PERFORMANCE: Utilizing a thicker build and a more pleat-heavy design than most retail air filters, our air conditioner filter offers enhanced airflow and efficiency, better capture coverage, (traps the unwanted particles) AND provides consistent, high performance filtration for up to three months.

Country of origin : United States

Model Number : FC100A1029

Package Weight : 2 pounds

Enhanced HVAC Effectiveness – Crafted to help improve your home’s ventilation efficiency, proper air flow can help reduce air flow resistance for less HVAC stress.

Cleaner, Healthier Air – These air conditioner filters help purify the air, which can help reduce itchy eyes and sneezing.

Premium Craftsmanship – Each HVAC air filter is crafted with four layers of high-grade aluminum and two layers of electrostatic media for superior reliability.

16" x 19" Aluminum mesh filter with factory creases

One Pair

Washable and reusable

Actual filter size is: 15.75 in x 24.125 in x 4.875 in

This filter is compatible with TrionAirBear furnaces calling for a 5" filter

The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing through it

Patented Filter Technology: Castle Filters use 3 layers of ¼-inch open-celled foam, with a patented tacky center layer that catches dust like fly paper. Proudly made in USA - US patent #10,183,249 B2

MERV 8: The High-Flow MERV 8 air filter effectively removes 93% of the most harmful dust particles and offers superior protection of your equipment and home while still allowing maximum air-flow

HVAC Filter: Castle Filters have 400% more surface area for dust and other particles to collect. The internal foam is treated with a sticky material to collect more dust while letting the air pass through

Filter Trion 255649-105 filter

Nominal dimensions: 16" x 25" x 5"

Actual dimensions: 15 1/4" x 24 1/4" x 4 47/50"

NO SCISSORS REQUIRED: Pre-Cut for Exact Fitment 14”x20”, 16”x20”, 16”x26”, 19-1/2”x21-3/4”, 19-1/2”x28”, 20"x30"

ORIGINAL NATURAL FIBER HOGS HAIR REPLACEMENT FILTER – High quality UL 900 classified original replacement as compared to synthetic material alternatives

MADE IN USA: High Grade Natural Fiber Furnace Door Replacement Filter for Mobile, Manufactured and Modular Homes Furnace / Air Conditioners

Fits Trion Air Bear Model 435790

Fits Honeywell Model 203719

Lasts up to 12 Months. Air Filter Type: Electrostatic

MERV 13 - Commercial, industrial and medical grade Merv 13 material protects against airborne particles down to 0.3 microns, which is good enough to stop most air born particles.

EASY TO CUT - You get a full 16 square foot sheet of advanced Merv 13 air filtration material. Use it as an inner layer in DIY projects or cut it to spec for other projects or custom sized air furnace filters and HVAC filters.

CLEANER AIR - This is the exact same Merv 13 material we use in our advanced air filters to clean and protect the air of homes, businesses, offices, warehouses and medical facilities all over the USA.

Reduce the amount of dust in your whole house!

BREATHE CLEANER AIR DAILY!

Vent Air Filters Reduce the amount of dust in your whole house! Breathe cleaner air and feel better today!

VENT FILTERS FOR HOME: Made of Electrostatic Non-Woven Polyester Fabric. Special electrostatic filtration capture small particles, reducing the dust in your home. They also guards against undesirables from entering your home.

GREAT VALUE FOR PRICE: Each package comes with a 98 inch x 18 inch roll of media and 157 inches of installation strip. This can cover over 36+ standard vents. Inexpensively cover nonstandard larger sized vents.

FLEXIBLE DIY DESIGN: Compatible with all size air vents, registers, and grilles. Cut to fit vents of any size. This versatile design makes it easy to cover or install behind non-standard vent sizes and for use in DIY projects.

HQRP® 2-pack Replacement Foam Filter;

Fits any window A/C unit or other filter systems up to 24 X 15 inch; Easy cut foam down to any size;

1/4 inch thick, keeps all dirt and dust out; Helps to remove dust and other contaminants from the air;

Electrostatic Non-Woven Polyester Fabric

EFFECTIVE AIR FILTER - Notice how small strands of hair cling to polyester clothing. Thin polyester fabric aids in more airflow and is superior to cheesecloth and gauze.

AMAZING VALUE - Each package comes with a 20 inch x 84 inch roll of filter media and 128 inches of installation strip. This can cover over 36 standard vents. Inexpensively cover nonstandard larger sized vents.

►PREMIUM MERV 8 TRIPLE FILTRATION: A vent register and return air register filters kit - Our cut to size air vent filters for home kit is specifically engineered filter material for your home vent filter needs. Our cut to size air filter fabric is 100% polyester that filters unwanted air particles that may cause sneezing, coughing, and red itchy eyes. Prevents debris from falling into the ducts and guards against creepy crawlees travelling in you air ducts.

► QUICK AND EASY INSTALLATION. This cut-to-fit HVAC filter media roll is compatible with all sizes of air vents, registers, and grilles. Covers all types of vents on floors, ceilings, walls, windows, AC vents and HVAC vents. Cut to any standard vent register sizes such as 4"x10", 4"x 12", as a circle vent filter or on return air vents. Perfect for a fan filter, box fan filter, and other DIY projects too!

►THE BEST VALUE MERV 8 VENT FILTER MEDIA ROLL FOR YOUR MONEY! This Kit comes with a 90" x 12" of premium filter material and 24" of adhesive hook tape. Great filter fabric for homes, RV air conditioner filters, RV ac filter, mobile homes, campers, ac vent filter, or as a window ac filter. This washable air filter is multipurpose for other DIY projects too!

Say good-bye to pollen, dust, and bacteria from your air and duct work – our Pristene Filters are designed for use with Decor Grates’ unique filter system, which holds filters in place using a snap-on grid that’s fitted to the bottom of our rustproof, high-impact plastic damper boxes; register and grid sold separately

The filters are ideal for heating and cooling systems and will not compromise air flow to your room due to the advanced micro finish design

We use only High Loft material, which allows more air to pass through vs. other filters, while still trapping most of the dust and other particles that would otherwise pass through without a filter

Miller Nordyne Nortek CMF Mobile Home Furnace Parts Foam Door Filter

16" X 26"

for Miller, Nordyne, Nortek, Intertherm, Broan and Maytag Furnaces

MERV 13 - Our commercial, industrial and medical grade Merv 13 material protects against airborne particles as small as 0.3 microns.

FIT ANY SIZE - You get a full 16 Ft²(27.56*84.65 inch) of advanced Merv 13 air filtration material. Use it as an inner layer in DIY projects or cut it to spec for other projects or custom sized air furnace filters and HVAC filters.

CLEANER AIR - Merv 13 material we use in our advanced air filters to clean and protect the air of homes, place of business, offices, warehouses and medical facilities. And it can be compressed or folded to store.

Electrostatically charged Filtrete filters work like tiny magnets to attract airborne particles.

6 months of clean air performance under normal conditions.

Outperforms all other fiberglass Hammock filters at removing airborne allergens of pet dander, mold and bacteria, and micro particles of smoke, viruses and dust.

Actual Size: 15 7/8 inches (length) x 19 3/4 inches (width) x 4 3/8 inches (depth)

Effective Filtration: MERV 11 synthetic media (comparable with MPR 1000 - 1200 & FPR 7) protects homes from pets, allergies, and more

High-Quality Contruction: Features an electrostatically charged, pleated design that captures more particles and prolongs the products lifespan by 3 times that of fiberglass models

10 high quality foam filters included

Air filter helps to clean the air going into your breathing treatment machine

Suggest to replace in a regular basis to optimize the performance and extend the life span of the machine

Contains 1 set of 48" x 16" x 0.125" thickness cut to fit Carbon Fabric replacement filter.

Made of Carbon Fabric, cost effective with DIY cut to fit to different size.

Change the filter by a periodically time can better removes odors and VOCs.

Cut to the size you desire up to 20 x 30"

Saves you time and money, clean systems use less electricity, and breakdown less often

No air bypass - 100% Air Filtration

Washable and reusable

Cut to size