18x20 Air Filters

20" H x 18" W x 1" D

Air-Care electrostatic air filters are 10 times more efficient than the standard disposable filter. By switching to a permanent electrostatic furnace filter, the air inside your home will be cleaner and fresher. Our furnace filters are electrostatically charged to trap up to 88% of the dust and allergens in your home. Just easily wash the filter every 1-3 months and put it back in place. The sturdy metal frame will stand the test of time. With a lifetime warranty, why not make the switch to a permanent air filter? Electrostatic Air Filters clean the air by using static electricity, a safe, naturally occurring phenomenon. An electrostatic charge is generated by air flowing through a maze of static-prone fibers. Airborne particles are attracted and held by the static charge until released by washing. All Air-Care Electrostatic Air Filters contain an EPA-registered anti-microbial material to inhibit mold and bacteria growth on the air filter surface. electrostatic air filters the air you breathe and contains many irritants such as pollen, dust, bacteria, mold spores, pet dander, and smoke. Most of these particles are smaller than one micron. Our Electrostatic Air Filters are an effective and efficient way to reduce the number of these particles in your air. This illustration shows the typical dust-loading pattern of the electrostatic fibers. This unique characteristic improves air flow while providing maximum filtration.

Best purchase in years. Much easier than buying a new one each time. Super easy to clean in between. Anonymous. Sat May 09 2026

24" H x 20" W x 1" D

Filter is a quality sturdy product. However, I wish my AC was labeled properly with correct filter size needed. Ordered size as the AC was labeled but filters were a little bigger than necessary.. Marlo. Hillsborough, CA. Wed Sep 17 2014

20" H x 20" W x 1" D

These are my favorite filters! I’m so happy Wayfair carries them. Shipping was lightening fast!. Tharin. Fayetteville, PA. Tue Jul 08 2025

20" H x 18" W x 2" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated air filter can be used in AC and furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 test standard while maintaining low pressure drop and long service life. Glasfloss Z-line series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded, and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

Please to have found the filters at a reasonable of price.. Naurmey. Baton Rouge, LA. Wed Jan 14 2026

20" H x 20" W x 2" D

For allergen filtration performance, the Glasfloss ZL MERV 11 pleated air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 11 filter features the latest in media technology to achieve a MERV 11 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 11 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

Been using the 20x25x4 for multiple years now. Filters work great, I replace mine every 90 days in my house. Never had any issues or concerns about quality or construction of the filters. I've seen many complaints about the 1" thick filters and while I understand their concerns; a 1" thick filter is old technology and should consider getting a larger filter box. I find the complaints about the tabs holding the pleats in the filter where you may have to push a few back trivial. You're buying a MERV 11 equivalent disposable filter, again DISPOSABLE. It wasn't long ago when everyone was just using the blue fiberglass air filters.. There is a balance between retail cost and manufacturing cost. If they raised prices to appease everyone, they'd complain the filters are too expensive even though build quality is excellent!. Your Neighbor. Indiana. Wed Dec 21 2022

20" H x 18" W x 1" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 test standard while maintaining low-pressure drop and long service life. Glasfloss Z-line series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded, and manufactured in an engineered gradient structure. The thermally-bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

Great price on a quality product. These are recommended by OEM. Very happy with purchase.. David. Wed Dec 25 2024

24" H x 20" W x 1" D

Fit is hard to find the right size filters for our furnace....so grateful you had them.. Kathryn. MO. Wed Sep 30 2020

24" H x 18" W x 4" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated air filter can be used in AC and furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 test standard while maintaining low-pressure drop and long service life. Glasfloss Z-line series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded, and manufactured in an engineered gradient structure. The thermally-bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

20" H x 16" W x 1" D

For allergen filtration performance, the Glasfloss ZL MERV 11 pleated air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 11 filter features the latest in media technology to achieve a MERV 11 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 11 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

20" H x 20" W x 1" D

It really works massive dust reduction. Talia Marie. Chandler, AZ. Wed Sep 04 2019

Keep your LG tower-style air purifier in perfect working order with LG replacement filters. The AAFTWT130 replacement filter pack includes one PuriCare micro-particle filter and one deodorizing activated carbon filter (filter cases are not included). LG's filtration system works together to clean the air, capturing dust and other airborne particles.

Ordered my replacement filter for my LG air purifier and now it works like new! Great seller with Wayfair! High quality product at a great price!. Anonymous. Sun Mar 30 2025

25" H x 20" W x 4" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated 4 inch air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and are manufactured in an engineered gradient structure. The thermally-bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

Great product thank you. Anonymous. Fri May 31 2024

For reliable filtration effectiveness, the glasfloss ZL merv10 pleated 2-inch air filter can be used in AC and furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The Merv 10 filter features the latest in media technology to achieve a Merv 10 rating per the ANSI/ASHRAE 52.2 test standard while maintaining low-pressure drop and long service life. Glasfloss Z-line series merv 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded, and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

20" H x 20" W x 4" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated air filter can be used in AC and furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 test standard while maintaining low pressure drop and long service life. Glasfloss Z-line series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded, and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

One replacement HEPA/Activated Carbon filter for the Air Shield air purifier.

Works just like old filter when it was new! I'm ordering more from you!. Anonymous. Picayune, MS. Fri Mar 29 2024

25" H x 20" W x 2" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated 2-inch air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and are manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

Get Simply Clean Air and keep your BISSELL air180 air purifier running its best buy replacing the filters every 6 months with genuine BISSELL replacement filters. Keeping up with filter maintenance means your home air purifier can keep capturing pet dander, pollen, dust, odors, and VOCs from your indoor air. The HEPA filter captures at least 99.97% of particles 0.3 microns and smaller, so you can breathe easier. BISSELL proudly supports BISSELL Pet Foundation and its mission to help save homeless pets. When you buy a BISSELL product, like this replacement filter, you help save pets, too. We're proud to design products that help make pet messes, odors and pet homelessness disappear.

I purchased this for my air purifier. It is made of very durable material. Thank you Wayfair’s.. Ellen. Lumber Bridge, NC. Thu Jan 08 2026

Ivation Replacement Activated Carbon Filter for IVADGOZHEPA Ivation 5-in-1 HEPA Air Purifier & Ozone Generator W/Digital Display Timer and Remote, Ionizer & Deodorizer 3,700 Sq/Ft

This is such an awesome replacement find!. Raymond. Palm Bay, FL. Thu Mar 12 2026

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated 4 inch air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and are manufactured in an engineered gradient structure. The thermally-bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

20" H x 20" W x 4" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 test standard while maintaining low-pressure drop and long service life. Glasfloss Z-line series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded, and manufactured in an engineered gradient structure. The thermally-bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

Ivation Replacement Activated Carbon Filter for IVADGOZHEPA Ivation 5-in-1 HEPA Air Purifier & Ozone Generator W/Digital Display Timer and Remote, Ionizer & Deodorizer 3,700 Sq/Ft

It's what I wanted but it's no use to me without the other filters.. Janine. Youngtown, AZ. Wed Nov 20 2024

20" H x 18" W x 1" D

Specification Material: Aluminium alloy Compatible Devices: Air Conditioner, Furnace Color: Silver PackageInclude 1x Aluminum Furance Filter

20" H x 40" W x 4" D

For allergen filtration performance, the Glasfloss ZL MERV 11 pleated air filter can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 11 filter features the latest in media technology to achieve a MERV 11 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 11 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

10.9" H x 9.9" W x 9.9" D

Get more out of your air purifier with our PureAir HEPA filter that captures pollen, household dust, dust mite debris, pet hair, dander, smoke, smog and other fine particles. This advanced filter works with your air purifier to continuously filter the air throughout the day. The filter features a high-performance pleated design and is simple to install for optimal performance of specified Frigidaire Air Purifiers.

Ozone Plate for OS600UV, OSAP7

20" H x 50" W x 5" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated air filter Trion replacements can be used in AC and Furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

Expandable Furnace Filter：The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

Great price on a genuine LG wall sleeve, plus fast shipping!. Anonymous. Tue Nov 14 2023

Expandable Furnace Filter:The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

Expandable Furnace Filter:The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

Expandable Furnace Filter:The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

15.8" H x 6.9" W x 1" D

Get more out of your air conditioner with our MERV 14 rated PureAir Premium Allergen Filter that captures pollen, household dust, dust mite debris, pet hair, dander, smoke, smog and other fine particles. This advanced filter works with your air conditioning unit to continuously filter the air throughout the day. The filter features a high-performance pleated design and is simple to install for optimal performance of specified Frigidaire Window Air Conditioners.

24" H x 20" W x 1" D

Works better than most filters! Great product ! Love it!. Cs26. Mcminnville, TN. Mon Aug 01 2022

18 x 18, Inside

Stellar Air decorative air intake covers are Magnetic and are made to replace the unattractive exhaust fan covers in your living space. Our unique designs will enhance the room by adding wall art to your hall, living room, ceiling or any space of your house. We transform eyesore air filter covers into beautiful wall decor. Our unique “snap in“ magnetic design means our vent covers can be easily installed without any drilling or headaches. You just have to remove your old ugly metal grill and snap in our Stellar Air vents. We include a new metal frame box, in case you need it and to guarantee a perfect fit. Please order by filter size behind the grill or the duct opening, measure correctly and do not measure your existing cover.

413 Replacement Air Filter MERV 13. A small change can make a big difference for the health of your home environment: 413 Air Filter delivers that difference with the MERV 13 Healthy Home Filters. It removes common airborne allergens including dust, pollen, mold spores, bacteria, pet dander, and dust mites as they pass through the MERV 13 filter. In addition, your HVAC system is protected from airborne particles, which helps lower your energy costs, and can prolong the life of your equipment. Better Performance: Self-Seal Technology reduces the amount of air bypassing the filter, delivering superior protection for a healthy home. Easy To Install: The unique Interlock Rail System requires no assembly or cardboard or metal reinforcements. Clean-Coil: 413 Air Purifier filters are so effective at removing airborne contaminants that can negatively affect the quality of your indoor air and your HVAC equipment. Compatible Devices: AprilAire Models: 1410, 1610, 2140, 2400, 2410, 2416, 3410, 4400, Space-Gard 2400 with Upgrade Kit 1413. MERV Rating: 13 Note: MERV is a scale used to measure the effectiveness of air filters. Higher number values translate to more effective filtration. Choose the Air Filter with the MERV rating that fits the needs of your family and home. Size：16" x 25" x 4" . Product Grade：Replacement parts.

Expandable Furnace Filter:The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

413 Replacement Air Filter MERV 13. A small change can make a big difference for the health of your home environment: 413 Air Filter delivers that difference with the MERV 13 Healthy Home Filters. It removes common airborne allergens including dust, pollen, mold spores, bacteria, pet dander, and dust mites as they pass through the MERV 13 filter. In addition, your HVAC system is protected from airborne particles, which helps lower your energy costs, and can prolong the life of your equipment. Better Performance: Self-Seal Technology reduces the amount of air bypassing the filter, delivering superior protection for a healthy home. Easy To Install: The unique Interlock Rail System requires no assembly or cardboard or metal reinforcements. Clean-Coil: 413 Air Purifier filters are so effective at removing airborne contaminants that can negatively affect the quality of your indoor air and your HVAC equipment. Compatible Devices: AprilAire Models: 1410, 1610, 2140, 2400, 2410, 2416, 3410, 4400, Space-Gard 2400 with Upgrade Kit 1413. MERV Rating: 13 Note: MERV is a scale used to measure the effectiveness of air filters. Higher number values translate to more effective filtration. Choose the Air Filter with the MERV rating that fits the needs of your family and home. Size：16" x 25" x 4" . Product Grade：Replacement parts.

Purchase alongside my dehumidifier. I haven’t used them yet but they’re the perfect size!. Colandra. Thomson, GA. Fri May 22 2026

Expandable Furnace Filter:The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

Expandable Furnace Filter:The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

Expandable Furnace Filter:The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

Odors are no match for the Filtrete Odor Defense Carbon Pre Filter. This filter is made to help reduce common household odors from cooking, tobacco smoke, pets and more.

Breathe in the fresh air your home deserves with the Soleus Air Whole House Air Purifier’s 4-stage True HEPA filtration system that sucks dust, pet dander, and allergens right out of the air. With a noise level of just 33 dB, the Soleus Air Whole House Air Purifier provides purified air at the volume of a whisper. With Alexa compatibility, you can change between the unit’s settings from anywhere in the house. A high CADR rating means this powerful air purifier delivers coverage to large-sized rooms up to 980ft2. Combining all these features with a laser that continuously measures air quality and automatically adjusts the unit’s settings makes the Soleus Air Whole House Air Purifier the ultimate solution for purified air throughout the home.

Justin. Palm Coast, FL. Tue Jan 14 2025

Vertical Stripe

The features a 4-stage air purification system, this unit removes 99.99% of airborne particles as small as 0.01 microns in size. Winix’s PlasmaWave® Technology may help to reduce the presence of airborne pollutants and impurities. The unit’s built-in Smart Sensors detect and monitor the quality of air in your environment and provides a visual representation of your current air quality. When in Auto Mode, the unit automatically adjusts fan speeds to ensure efficient and cost-effective cleaning. Sleep mode is automatically activated when the room is darkened, providing quiet, energy-efficient operation.

Amazing product, I havnt had any allergy issues since getting this purifier. Saw a review on the YouTube channel, project farm and we love it.. Heather. Voluntown Ct. Tue Apr 28 2026

Expandable Furnace Filter:The expandable air filter fits various AC models. Made with electrostatic cotton, it captures pollen, smoke, and fine particles while avoiding air leaks for cooling & purification. Durable pleated design reduces replacements, and easy installation makes it ideal for home AC, air purifier, and vent.

20" H x 20" W x 4.38" D

For reliable filtration effectiveness, the Glasfloss ZL MERV 10 pleated air filter can be used in AC and furnace systems for homes, apartments, business properties, school systems, government institutions, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 test standard while maintaining low pressure drop and long service life. Glasfloss Z-line series MERV 10 filter media is laminated to a heavy-duty, galvanized, metal backing that stabilizes the media during operation. Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded, and manufactured in an engineered gradient structure. The thermally bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life.

High-Efficiency Replacement Filter--Easy to Replace, Long-Lasting Cleanliness:Made with high-quality composite material, this filter captures PM2.5, dust, pollen, pet hair, and other pollutants, enhancing air purification for your family's health. It lasts 6-12 months, with a convenient replacement reminder. Easy to install, it ensures fresh air for everyday use.

Every product undergoes our rigorous internal quality control to ensure that what reaches your hands is a reliable piece that stands the test of time. We look forward to providing you with a worry-free experience.