14 Best AC Filter 18X20X1 for 2024

(Many of the links in this article redirect to a specific reviewed product. Your purchase of these products through affiliate links helps to generate commission for Storables.com, at no extra cost. Learn more)

Are you in search of the perfect AC filter for your system? Look no further! In this article, we will explore the 14 best AC Filter 18X20X1 options for the year 2023. Keeping your air conditioning system in top-notch condition is essential for maintaining a healthy and comfortable indoor environment. With a wide range of filters available on the market, it can be overwhelming to choose the right one. That's why we have done the research for you, narrowing down the options to the top 14 filters that meet the size requirements of 18X20X1. Whether you prioritize allergen reduction, airflow optimization, or durability, our expert recommendations have got you covered. Stay tuned to find the perfect AC filter for your needs!

Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 9/10

The Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense is a high-quality replacement air filter for your furnace, air conditioner, heat pump, or HVAC system. It features a pleated design and MERV 8 synthetic media that traps 90% of airborne particles, including dust and pollen, without impacting air flow. The filters are made with industrial-grade beverage board frames and dual wire backings for durability and performance. Manufactured in the United States with recyclable materials, this product is both effective and environmentally friendly.

The Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense is an excellent choice for anyone looking to improve their home’s air quality. With its high-efficiency filtration and durable construction, it effectively captures and traps airborne particles without impacting air flow. The filters are made with recyclable materials and manufactured in the United States, making them a reliable and eco-friendly option. While they may not fit snugly in all HVAC systems, their overall performance and reliability make them a top choice for maintaining clean and healthy indoor air.

18x20x1 Air Filter MERV 11 Allergen Defense (2-Pack)

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 9/10

Enhance the air quality in your home with the Filterbuy 18x20x1 Air Filter MERV 11 Allergen Defense. These replacement air filters are perfect for your furnace, air conditioner, heat pump, or HVAC system. The MERV 11 synthetic media traps 95% of airborne particles, protecting your home from allergens and pet dander while maintaining optimal airflow. With its durable construction and electrostatically charged, pleated design, this filter outperforms fiberglass models and lasts three times longer. The industrial-grade beverage board frames with dual wire backings provide superior strength compared to standard cardboard designs. Made in the USA with recyclable materials, these filters are not only effective but also environmentally-friendly.

The Filterbuy 18x20x1 Air Filter MERV 11 Allergen Defense is a top-notch air filter that enhances the air quality in your home. Its MERV 11 synthetic media traps 95% of airborne particles, providing protection against allergens and pet dander. The durable construction and pleated design ensure a longer lifespan and efficient performance. Additionally, the industrial-grade beverage board frames offer superior strength. With its easy installation process and recyclable materials, this filter is not only effective but also environmentally-friendly. However, some customers have noted that the filters were not individually wrapped, which may reduce their efficiency. Overall, if you’re looking for a high-quality air filter that delivers exceptional performance, the Filterbuy 18x20x1 Air Filter MERV 11 Allergen Defense is a fantastic choice.

Filtrete 18x18x1 Air Filter

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.5/10

The Filtrete 18x18x1 Air Filter is a 6-pack of pleated filters designed to capture unwanted particles in your home's air. With a 300 MPR and MERV 5 rating, it effectively filters out many particles to contribute to a cleaner and fresher home environment. The filter is slightly different from the nominal size, with exact dimensions of 17.81 x 17.81 x 0.81. It features exclusive Filtrete 3-in-1 technology to trap and remove unwanted particles, ensuring clean air flow. The filter is versatile and can be used in furnaces, air conditioners, heating systems, or HVAC systems. For optimal performance, it is recommended to change the filter every 90 days. Additionally, customers can subscribe and save up to 10% on their orders.

The Filtrete 18x18x1 Air Filter is a highly effective and versatile filter option for your home’s heating and cooling systems. With its 3-in-1 technology, it captures and traps unwanted particles, ensuring cleaner and fresher air flow. The filter is available in a convenient 6-pack, offering great value for money. While some customers have reported concerns about its construction, the majority of reviews praise its functionality and performance. By subscribing and saving, you can enjoy ongoing savings on your filter orders. Overall, the Filtrete 18x18x1 Air Filter is a reliable choice to improve the air quality in your home.

Aerostar 18x20x1 MERV 8 Pleated Air Filter, 6 Pack

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.5/10

The Aerostar 18x20x1 MERV 8 Pleated Air Filter is a cost-effective solution to improve the air quality in your home. This filter is designed to effectively filter microscopic particles, such as lint, dust mites, spores, and pollen, while maintaining low air flow resistance. It is simple to install and recommended to be changed every 60 to 90 days, with increased frequency during peak summer and winter months. Made with 100% synthetic electrostatic media, this filter offers high efficiency in filtration. Manufactured by Filtration Group, a leading filtration solutions provider, you can trust in the quality and effectiveness of this product. Keep your home environment healthier with the Aerostar 18x20x1 MERV 8 Pleated Air Filter.

The Aerostar 18x20x1 MERV 8 Pleated Air Filter is a reliable and cost-effective choice for improving the air quality in your home. It effectively filters microscopic particles, maintains low air flow resistance, and is simple to install. While it may be thinner than name brand filters and may not come with individual packaging, these minor drawbacks do not outweigh the overall effectiveness and value of this product. Manufactured by a leading filtration solutions provider, you can trust in the quality and performance of this air filter. Keep your home environment healthier with the Aerostar 18x20x1 MERV 8 Pleated Air Filter.

Filtrete Air Filter, MPR 1000, 4 Filters

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.6/10

The Filtrete 18x20x1 Air Filter is a 4-pack of 3-month pleated 1-inch filters designed to capture unwanted particles and improve the air quality in your home. With its exclusive Filtrete 3-in-1 technology and a 1000 MPR and MERV 11 rating, this filter effectively traps microparticles from the air passing through it. It is versatile and can be used in furnaces, air conditioners, and HVAC systems. The filter's exact dimensions are 17.81 x 19.81 x 0.81, slightly different from the nominal size. For optimal performance, it is recommended to change the filter every 90 days. The Filtrete Air Filter is available on Amazon with a subscription option to save up to 10% on orders.

The Filtrete 18x20x1 Air Filter is a reliable and efficient choice for improving indoor air quality. With its high MPR and MERV rating, it effectively captures microparticles, making it ideal for households prone to allergies or with sensitive respiratory systems. The filter is easy to install and offers a subscription option for convenient replacements. While the cardboard frame may pose issues for some users, the overall performance and effectiveness of the filter outweigh this drawback. With its reasonable price and positive customer reviews, the Filtrete Air Filter is a recommended purchase for anyone looking to enhance their home’s air quality.

Aerostar 18x20x1 MERV 11 Pleated Air Filter, 6 Pack

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8/10

The Aerostar 18x20x1 MERV 11 Pleated Air Filter is a cost-effective step towards a healthier home environment. It is designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, and smoke. This high-quality filter is made with 100% synthetic electrostatic media for high efficiency and low air flow resistance. It's simple to install and should be changed every 60 to 90 days, or every 30 days during peak summer and winter months. The Aerostar 18x20x1 MERV 11 Pleated Air Filter is manufactured by Filtration Group, a world-leading manufacturer and supplier of filtration solutions. With its impressive performance and reliable construction, this air filter delivers clean air and great indoor air quality.

The Aerostar 18x20x1 MERV 11 Pleated Air Filter is an effective and cost-friendly solution for improving indoor air quality. With its high efficiency and ability to filter out microscopic particles, it provides a healthier home environment. While the thin cardboard and potential shape issues may be a drawback for some, overall, this air filter delivers satisfactory performance. Its compatibility with various systems and the reputation of its manufacturer further contribute to its value. For those looking for an affordable and reliable air filter, the Aerostar 18x20x1 MERV 11 Pleated Air Filter is worth considering.

Aerostar MERV 13 Pleated Air Filter, 6-Pack

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8/10

The Aerostar 18x20x1 MERV 13 Pleated Air Filter is a high-quality air filter designed to improve the air quality in your home. With a MERV 13 rating, this filter is capable of capturing microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, smoke, viruses, and bacteria. It features a 100% synthetic electrostatic media that provides high efficiency with low air flow resistance. Installing these filters is simple and cost-effective, making it a great step towards creating a healthier home environment. The filter should be changed every 60 to 90 days, with increased frequency during peak summer and winter months. Manufactured by Filtration Group, a leading filtration solutions provider, the Aerostar 18x20x1 MERV 13 Pleated Air Filter is a reliable choice for improving indoor air quality.

The Aerostar 18x20x1 MERV 13 Pleated Air Filter is a reliable and cost-effective solution for improving indoor air quality. With its high MERV 13 rating, it effectively captures and filters microscopic particles, ensuring a healthier home environment. While the flimsy border may raise durability concerns during installation, the overall performance and affordability of this air filter make it a worthwhile purchase. Whether you have allergies or simply want to breathe cleaner air, the Aerostar 18x20x1 MERV 13 Pleated Air Filter is a recommended choice.

Nordic Pure 18x20x1 MERV 14 Pleated AC Furnace Air Filters 6 Pack

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.5/10

The Nordic Pure 18x20x1 MERV 14 Pleated AC Furnace Air Filters come in a convenient 6-pack and are designed to provide high-quality filtration for your home or commercial unit. These filters are made in the USA and have a rating of MERV 14, equivalent to MPR 2800. They are ideal for customers with health problems or for units that require a high-level filtration system. The filters have a nominal size of 18 x 20 x 1, but it is recommended to measure your air filter for an exact fit. With great customer reviews and a customer rating of 4.7/5, these filters offer reliability and performance.

The Nordic Pure 18x20x1 MERV 14 Pleated AC Furnace Air Filters provide excellent filtration for your home or commercial unit. They have a high rating and are equivalent to MPR 2800. Made in the USA, these filters are reliable and effective for customers with health concerns. However, there have been some reports of incorrect quantities received, and the price may be slightly higher compared to previous filters. Overall, these filters offer great performance and come highly recommended by customers. It’s important to measure your air filter for an exact fit before purchasing.

Filterbuy MERV 8 Air Filter (4-Pack)

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.5/10

The Filterbuy 18x20x1 Air Filter is a highly effective replacement air filter for your furnace, air conditioner, heat pump, or HVAC system. It is made of MERV 8 synthetic media, which can trap up to 90% of airborne particles including dust and pollen. The electrostatically charged, pleated design captures more harmful particles and extends the filter's lifespan compared to fiberglass models. The strong industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs. All components are made in the United States using recyclable materials. With a compact size and high-quality construction, this air filter offers excellent protection and durability for your home.

The Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense is a reliable and efficient solution for improving indoor air quality. With its high particle trapping efficiency and longer lifespan, it offers great value for money. The industrial-grade construction ensures durability, while the compact size fits various HVAC systems. Although the filter may be slightly smaller than the stated dimensions, it still functions effectively. Overall, this air filter is a convenient and cost-effective choice for homeowners looking to maintain a cleaner and healthier living environment.

Filterbuy HVAC Air Filter MERV 13 (2-Pack)

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.5/10

The Filterbuy 18x20x1 Air Filter MERV 13 Optimal Defense is a high-quality replacement air filter for your furnace, air conditioner, heat pump, or HVAC system. It features MERV 13 synthetic media that traps 98% of airborne particles without impacting air flow. The electrostatically charged, pleated design captures more harmful particles and extends the filter's lifespan. The industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs. All components are manufactured in the United States and are designed with recyclable materials. The filters come in a pack of two and have a platinum color. With excellent customer ratings and reviews, this Filterbuy air filter provides reliable and effective filtration for your home or office.

The Filterbuy 18x20x1 Air Filter MERV 13 Optimal Defense is a reliable and effective choice for improving indoor air quality. With its high-quality construction, MERV 13 filtration, and longer lifespan, this air filter offers superior performance compared to traditional fiberglass models. The industrial-grade frames and recyclable materials enhance durability and make it an eco-friendly option. While it may be a bit more expensive, the Filterbuy air filter provides excellent filtration for those who prioritize clean air. However, some users may find it slightly challenging to fit in certain systems, and the price could be more competitive. Overall, it is a recommended product for those seeking efficient and long-lasting air filters.

18x20x1 Air Filter Furnace Filter HVAC AC Filters – Efficient and Reliable

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.5/10

Ensure clean and healthy air flow with the 18x20x1 air filter furnace filter. This pleated air filter is designed to fit most high-speed heating and cooling systems. It offers high-efficiency filtration performance and low air flow resistance, effectively capturing and eliminating unwanted air particles. With its white color, it complements any HVAC system seamlessly. The 18x20x1 air filter contributes to cleaner, healthier, and fresher indoor air quality, promoting a comfortable living environment. Each pack includes four filters, ensuring long-lasting and reliable filtration.

The 18x20x1 air filter furnace filter is a reliable and efficient HVAC accessory that enhances air quality in homes. With its high-efficiency filtration and low air flow resistance, it effectively traps unwanted particles, ensuring cleaner and healthier indoor air. It is compatible with most high-speed heating and cooling systems, making it a versatile choice for homeowners. Although there may be slight deviations in size, it does not hinder its overall performance. The 18x20x1 air filter is easy to install and replace, providing long-lasting filtration for a fresher living environment. Invest in this filter to enjoy the benefits of improved air quality and a more comfortable home.

Precisionaire Furnace Filters Pack of 12

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.5/10

The Precisionaire 18X20x1 Fbg Furn Filter (Pack Of 12) 1005 Furnace Filters Mounted is a must-have for anyone who wants to keep their furnace running efficiently. These disposable furnace filters are made of fiberglass and have a flat panel design. With a size of 18" X 20" X 1" and a Merv rating 1, they effectively trap dust and debris, ensuring clean air flow throughout your home. The pack includes 12 filters, providing great value for money. Customers have praised the affordability, ease of use, and effectiveness of these filters. However, some users have noted that the filters were not true to size and required bending to fit properly. Overall, the Precisionaire 18X20x1 Fbg Furn Filter (Pack Of 12) 1005 Furnace Filters Mounted is a reliable and budget-friendly option for maintaining a clean and well-functioning furnace.

The Precisionaire 18X20x1 Fbg Furn Filter (Pack Of 12) 1005 Furnace Filters Mounted is a cost-effective choice for maintaining clean air flow in your home. With its fiberglass construction and flat panel design, it efficiently traps dust and debris. While some users have experienced issues with the size and delivery, the overall performance and value of these filters are commendable. Whether you’re looking to replace filters frequently or stocking up for rental units, this pack of 12 filters offers a great solution. Keep your furnace running smoothly with the Precisionaire 18X20x1 Fbg Furn Filter (Pack Of 12) 1005 Furnace Filters Mounted.

Filtrete 18x24x1 Air Filter, MPR 300, Clean Living Basic Dust, 6 Pack

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.5/10

The Filtrete 18x24x1 Air Filter is designed to help capture unwanted particles from your household air, contributing to a cleaner and fresher home environment. With its 3-month pleated design, exclusive Filtrete 3-in-1 technology, and MPR 300 rating, this air filter efficiently captures many particles to ensure cleaner air flow. It is versatile and can be used in furnaces, air conditioners, heating systems, or HVAC systems. The filter should be changed every 90 days for optimal performance. You can also subscribe and save up to 10% on your orders. The filter has exact dimensions of 17.81 x 23.81 x 0.81, slightly different from the nominal size. It comes in a pack of 6 and is available in white color. Customers have praised its value, good fit, and quality.

The Filtrete 18x24x1 Air Filter is a reliable and effective solution for improving the air quality in your home. With its advanced filtration technology, it helps capture a wide range of unwanted particles, ensuring a cleaner and fresher environment. The filter is versatile and compatible with various systems, making it a convenient choice for homeowners. While some users had minor issues with positioning the filter or found it to be slightly flimsy, the overall consensus is that it offers good value for money and performs well. If you prioritize clean air and easy maintenance, the Filtrete 18x24x1 Air Filter is worth considering.

BNX TruFilter Air Filter MERV 13 (4-Pack) – Improved Indoor Air Quality

Check Latest Price

This product has a rating of A.*What does this rating mean?

Overall Score: 8.5/10

The BNX TruFilter 20x20x1 Air Filter is a high-performance air filter replacement for your air conditioner, furnace, or HVAC system. Made in the USA, this filter is sustainably manufactured with recycled cardboard and adopts single-sided frame technology to reduce environmental waste. With its MERV 13 rating, it captures 93% of microscopic airborne particles, including allergens, pollen, mold, bacteria, smoke, and more. The BNX air filter provides noticeably cleaner air within 48 hours, delivering superior performance with low air flow resistance. This 4-pack comes at a good value compared to other name brands and is backed by BNX's commitment to delivering the highest quality American-made safety products. Improve your indoor air quality with the BNX TruFilter 20x20x1 Air Filter.

The BNX TruFilter 20x20x1 Air Filter is a reliable and effective air filter that improves indoor air quality. Made in the USA with sustainable manufacturing, it captures a high percentage of microscopic particles while maintaining low air flow resistance. Although it may cause the HVAC system to work harder for some users, the overall performance and customer service make it a worthwhile purchase. With noticeably cleaner air within 48 hours, this air filter provides an excellent value compared to other name brands. If you’re looking for a quality air filter that delivers on its promises, the BNX TruFilter is a solid choice.

Buyer's Guide: AC Filter 18x20x1

Are you tired of dealing with poor indoor air quality in your home? Look no further! This buyer's guide will provide you with all the information you need to make an informed decision when purchasing an AC filter with the dimensions 18x20x1. Say goodbye to dust, allergens, and other airborne particles, and say hello to clean and fresh air! Let's dive right in!

Key Considerations

Before you dive into purchasing an AC filter, here are some important factors to keep in mind:

• Filter Efficiency: Consider the MERV (Minimum Efficiency Reporting Value) rating of the filter. A higher rating indicates a better ability to capture smaller particles, including dust, pollen, and pet dander, improving your indoor air quality.
• Filter Type: Decide between different filter types, such as fiberglass, pleated, or electrostatic filters. Each type has its own pros and cons, including cost, filter life, and filtration efficiency.
• Filter Lifespan: Check the manufacturer's recommendations for how often the filter needs to be replaced. Long-lasting filters may be more cost-effective in the long run.
• Filter Size: Ensure that the AC filter you choose matches the dimensions of your HVAC system. In this case, make sure the filter is 18x20x1.
• Ease of Installation: Look for filters that are easy to install and remove. A filter with clearly labeled arrows indicating the correct airflow direction can save you time and frustration.
• Filter Maintenance: Consider the ease of maintaining and cleaning the filter. Some filters are washable, which can save you money in the long run, while others require regular replacements.

Types of AC Filters

There are various types of AC filters available in the market. Here are the most common ones:

1. Fiberglass Filters

• Made from layered fiberglass fibers
• Inexpensive but offer limited filtration efficiency
• Suitable for households with no significant indoor air quality concerns

• Utilize a pleated design to increase the filter's surface area
• Provide better filtration efficiency compared to fiberglass filters
• Capture smaller particles and allergens effectively

• Use static electricity to capture airborne particles
• Available in washable or disposable options
• Highly efficient in capturing a wide range of pollutants

• Contain a layer of activated carbon that absorbs odors and volatile organic compounds (VOCs)
• Ideal for households with cooking odor or chemical sensitivities
• Less effective in capturing dust and allergens compared to pleated filters