Top Factory Direct Filters Deals & Price Drops for April 2026

These 16x21x4 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

Factory Direct Filters offers the perfect 16x21x4 Aerostar air filter to fit your home's HVAC system precisely. This right-sized filter ensures optimal airflow while capturing dust, pollen, and airborne particles. Select the ideal MERV rating for your household needs, whether you require basic dust control or enhanced filtration for allergies. Our direct-to-you model means you get premium Aerostar quality without the retail markup. Breathe easier knowing your system is protected and your indoor air is cleaner. Easy to install and designed for lasting performance, this filter is a smart investment in your home's comfort and air quality. Order today and experience the Factory Direct Filters difference with reliable products shipped straight to your door.

These 20x21.5x4 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

Upgrade your home's air quality with the Aerostar 12x36x4 air filter, available right here at Factory Direct Filters. This precise size is engineered to fit your HVAC system perfectly, ensuring no air bypasses the filter for maximum efficiency. We offer a range of MERV ratings so you can select the exact level of filtration your household requires. Whether you need basic dust and pollen control or advanced protection against finer particles, we have the right filter for you. A higher MERV rating captures more contaminants, helping to reduce allergens and create a cleaner breathing environment for your family. This is especially beneficial for those with allergies, pets, or anyone seeking improved indoor air. Choosing the correct filter protects your heating and cooling equipment from dust buildup, which can help it run more smoothly and efficiently. This simple maintenance step can contribute to lower energy bills and prevent costly repairs down the line. At Factory Direct Filters, we cut out the middleman to bring you high-quality air filters at factory-direct prices. You get reliable performance without the retail markup. Browse our full selection at factorydirectfilters.com to find the ideal Aerostar filter for your system and enjoy the savings and simplicity of ordering directly from the source. Breathe easier knowing you've made a smart choice for your home and your budget.

Factory Direct Filters offers the Aerostar 12x12x4 air filter, a precise solution for your home's air quality. This exact 12x12x4 size ensures a perfect fit for your HVAC system, eliminating gaps that let dust and allergens bypass the filter. We provide a selection of MERV ratings, allowing you to customize protection based on your household's specific needs. For families with allergies, a higher MERV rating captures more microscopic particles, promoting easier breathing and a cleaner living environment. For general household dust and pet dander, a standard MERV rating offers excellent balance and airflow. Choosing the right filter protects your furnace and air conditioner from buildup, which can help maintain efficiency and prevent costly repairs. Breathe confidently knowing you've selected a quality filter designed for performance. Our direct-to-you model at factorydirectfilters.com means you get this reliability without the retail markup. Stock up on these essential 12x12x4 filters to ensure consistent, clean air throughout every season. Replace your old filter with an Aerostar and experience the difference in your home's air purity and system operation.

These 8.75x27x1 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

Discover the perfect fit for your home's air quality with the 6x14x1 Aerostar Air Filter from Factory Direct Filters. This precisely sized filter is engineered to seamlessly replace your old one, ensuring optimal performance for your HVAC system. We offer a range of MERV ratings, allowing you to select the ideal level of filtration based on your household's specific needs. Choosing the right filter means breathing cleaner, healthier air every day. A higher MERV rating captures more airborne particles like dust, pollen, and pet dander, which is ideal for families with allergies or asthma. For standard household dust and lint protection, a mid-range MERV provides excellent value. Our filters are designed to maintain strong airflow while trapping contaminants, helping your system run efficiently. At Factory Direct Filters, we cut out the middleman to deliver premium quality at unbeatable prices. You get a reliable, American-made product shipped directly to your door, saving you time and money compared to big-box stores. Protect your family and your heating and cooling equipment with a filter built to last. Visit Factory Direct Filters online at factorydirectfilters.com to explore our full selection and find your exact match. Enjoy the confidence of cleaner air and a well-maintained home with every breath you take.

These 15x29x1 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

Find the perfect fit for your HVAC system with the 14x36x4 Aerostar Air Filter from Factory Direct Filters. This right-sized filter is engineered to deliver cleaner, healthier air throughout your home or business. We offer a selection of MERV ratings, allowing you to choose the ideal level of filtration for your specific needs and lifestyle. A higher MERV rating captures more airborne particles, including dust, pollen, pet dander, and mold spores. This means better protection for your family's respiratory health and a cleaner living environment. For those with allergies or asthma, selecting the appropriate MERV rating can make a noticeable difference in indoor air quality. Our Aerostar filters are built with durability and performance in mind. The sturdy construction ensures consistent airflow while trapping contaminants effectively. By maintaining your system with a quality filter, you also support the efficiency and longevity of your HVAC equipment, which can help prevent costly repairs. At Factory Direct Filters, we provide premium products without the retail markup. You get factory-direct savings on every filter, ensuring you don't have to compromise on quality for your budget. Explore our full range of sizes and MERV ratings at factorydirectfilters.com to find the exact filter your system requires. Breathe easier knowing you've chosen a reliable, high-performance air filter designed for your home.

Keep your home's air fresh and your HVAC system running smoothly with the right-sized 16x22.5x1 air filter from Factory Direct Filters. This precise dimension ensures a perfect fit for your specific system, preventing air bypass and maximizing filtration efficiency for cleaner air throughout your living space. At Factory Direct Filters, we empower you to choose the exact level of protection your household needs. Select the ideal MERV rating based on your lifestyle, whether you're looking for reliable basic dust and pollen capture or enhanced filtration for allergens and finer particles. This choice puts you in control of your indoor air quality. Investing in the correct filter protects your heating and cooling equipment. A properly fitting filter prevents dust and debris from accumulating on critical components, which can help reduce strain, lower energy costs, and extend the lifespan of your HVAC unit. It's a simple, cost-effective step toward long-term savings. Factory Direct Filters delivers genuine value by selling high-quality filters directly to you, cutting out the middleman markup. Enjoy the convenience of finding the exact size you need at factory-direct prices, shipped straight to your door from factorydirectfilters.com. Breathe easier knowing you've made a smart choice for your home and your budget.

These 16x25x5 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

These 24x25x2 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

These 21.5x23.25x1 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

Find the perfect fit for your HVAC system with the 16x36x4 air filter from Factory Direct Filters. This exact size is engineered to match your specific requirements, ensuring a secure seal and optimal airflow for efficient home heating and cooling. We provide a selection of MERV ratings so you can choose the ideal level of air purification for your household. Selecting the correct MERV rating allows you to customize your indoor air quality. A higher rating captures more airborne particles, from common dust to finer allergens, promoting a cleaner and healthier living environment for your family. This proactive step is essential for those with allergies or respiratory sensitivities, helping everyone breathe easier. Factory Direct Filters delivers this premium 16x36x4 air filter directly to your door, combining convenience with significant savings. By shopping at factorydirectfilters.com, you bypass retail markups, getting a high-quality product at a wholesale price. Our commitment is to provide you with reliable filtration that protects your HVAC system and improves your home's air without straining your budget. Upgrade your home's air filtration simply and affordably. Replace your old filter with this precise 16x36x4 size to maintain system efficiency, reduce energy costs, and enjoy noticeably cleaner air. Visit our website today to explore your MERV options and experience the Factory Direct Filters difference in quality and value.

Upgrade your home's air quality with the Aerostar MERV 11 Collapsible Replacement Filter, the perfect fit for your Carrier or Bryant EXPXXFIL0020 system. This high-performance 20x26x5 filter is engineered to capture a high percentage of airborne particles, including dust, pollen, mold spores, and pet dander, providing cleaner, fresher air for your family. Factory Direct Filters is your trusted source for this premium replacement, ensuring you get the exact specification you need without the high retail markup. The innovative collapsible design makes installation a breeze, allowing the filter to easily fit into tight spaces before expanding to form a perfect seal. This feature ensures maximum airflow and filtration efficiency for your HVAC unit. A MERV 11 rating offers an excellent balance, providing superior particle capture compared to standard filters while maintaining optimal system performance and energy efficiency. Choosing this replacement from Factory Direct Filters means investing in your health and your home's comfort. Breathe easier knowing you're protected from common allergens and irritants. Our direct-to-you model passes significant savings on to you, offering OEM-compatible quality at a fraction of the cost. Protect your heating and cooling system and enjoy peace of mind with every breath. Visit Factory Direct Filters online at factorydirectfilters.com to find this and thousands of other exact replacement filters. Experience the convenience of shopping direct, with fast shipping and reliable customer service. Ensure your Carrier or Bryant system runs smoothly and efficiently with the precise filter it was designed for. Order your Aerostar MERV 11 collapsible air filter today and take the first step toward a healthier indoor environment.

Factory Direct Filters offers the Aerostar 10x20x4 air filter, a precise solution for your home's HVAC system. This exact size ensures a perfect fit, preventing air bypass and maximizing filtration efficiency. You can select the ideal MERV rating for your specific needs, from basic dust and pollen capture to enhanced allergen control. This choice empowers you to create a healthier indoor environment tailored to your family's lifestyle. Upgrading your air quality has never been simpler. A clean, properly fitted filter helps your furnace and air conditioner run more efficiently, which can lead to lower energy bills. It also protects your expensive HVAC equipment from dust and debris buildup, potentially extending its lifespan and avoiding costly repairs. At Factory Direct Filters, we provide high-quality replacement filters without the retail markup. Ordering from www.factorydirectfilters.com means getting the right part delivered directly to your door, saving you both time and money. Breathe easier knowing you've made a smart investment in your home's comfort and your family's well-being with a reliable Aerostar filter.

Factory Direct Filters offers the perfect 16x32x4 Aerostar air filter to fit your home's HVAC system precisely. This right-sized filter ensures a snug, gap-free fit, maximizing airflow and system efficiency. We provide a selection of MERV ratings so you can choose the ideal level of filtration for your household's specific needs. Selecting the correct MERV rating is key to balancing air purity and system performance. A higher MERV rating captures more airborne particles, including dust, pollen, and pet dander, leading to noticeably cleaner and fresher indoor air. This is especially beneficial for families with allergies or respiratory sensitivities. Our Aerostar 16x32x4 air filters are engineered for durability and consistent performance. By protecting your heating and cooling equipment from dust buildup, these filters help extend the lifespan of your system and can contribute to lower energy bills. It's a simple, cost-effective way to maintain a healthier home environment. Shop directly at FactoryDirectFilters.com for genuine quality and significant savings. We cut out the middleman to deliver premium air filters right to your door at factory-direct prices. Enjoy cleaner air, protect your HVAC investment, and breathe easier knowing you've made a smart choice for your home. Find your perfect MERV rating and order your filter today.

These 24x25x1 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

These 8x25x1 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

These 9x13x1 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.

Find the perfect fit for your home's air quality with our 21.5x23.5x4 air filter. At Factory Direct Filters, we provide a precisely sized solution to ensure your HVAC system runs efficiently and your family breathes easier. This right-sized filter is engineered to fit your system perfectly, preventing unfiltered air from bypassing the media and maximizing particle capture. Selecting the correct MERV rating is crucial for your specific needs. Whether you require basic dust and pollen filtration or enhanced protection against finer particles like mold spores and pet dander, we have an option for you. Our range allows you to customize your indoor air, balancing superior filtration with optimal airflow for your system's health. Choosing Factory Direct Filters means investing in cleaner air without the retail markup. Our direct-to-you model ensures you receive a high-quality, durable air filter at a significant savings. Experience the difference a perfectly fitted, properly rated filter makes in your home's comfort and air purity. Shop our selection of 21.5x23.5x4 air filters today at factorydirectfilters.com and breathe confidently knowing you've made a smart choice for your home and budget. Enjoy the convenience of direct delivery and the assurance of a product built to perform.