SpiroPure pleated AC & Furnace Geothermal air filters are made in the USA and are the perfect choice for most standard residential and light commercial air conditioner and furnace units. MERV 13 rated filters are a great choice for inpatient hospitals, general surgery, and other commercial spaces that require increased filtration. Please measure your existing furnace filter before ordering to ensure that this size will be compatible with your AC & furnace system. High Quality Performance Our pleated air filter replacements offer high quality filtration performance without the high costs. Breathe easier as your furnace filter removes particles such as hair, carpet fiber, and more from the air in your home. Plus, with an efficiency of 90% or better, these filters are a great choice for inpatient hospitals and other commercial environments that require increased filtration. SpiroPure geothermal furnace filters are offered in value packs, helping you to save more! Value packs mean you get a high quality product with great material quality, efficiency, and filtration performance without taking a hit to your wallet. TOP BENEFITS OF SPIROPURE GEOTHERMAL AIR FILTERS LONG LASTING DURABILITY IMPROVED AIR QUALITY EASY INSTALLATION HIGH QUALITY AFFORDABILITY MADE IN THE USA AFFORDABLE QUALITY Find a value pack of high quality replacement furnace geothermal filters from SpiroPure. Our pleated air filters are sold in packs in order to save you even more without cutting corners on material quality, efficiency, or filtration performance. EFFICIENT FILTRATION The 85% of better efficiency for particles 3 to 10 micron in size, plus the added reduction of particles 1 to 3 microns in size at a 90% or better efficiency, means MERV 13 filters can assist in the increased reduction of hair, carpet fiber, and much more. EASY TO INSTALL We recommend replacing your furnace filter every 2 to 3 months for maximum efficiency and system life. A dirty filter restricts airflow, which can put too much strain on the system. The leading cause for HVAC system failure is a dirty air filter. SpiroHealth Air Filters SpiroPure MERV 13 SpiroHealth furnace filters create a healthier environment, providing enhanced filtration of unwanted particles such as hair, carpet fiber, and more. MERV 13 Rating MERV 13 rated filters are a great choice for inpatient hospitals, general surgery, and other commercial spaces that require increased filtration. An 85% or better efficiency for particles 3 to 10 micron in size, plus the added reduction of particles 1 to 3 microns in size at a 90% or better efficiency. Made in the USA Our pleated furnace air filters are Made in the USA and offer a high quality replacement air filter option for your air conditioner and/or furnace unit without the high cost. High Performance With an efficiency of 90% or better, these filters are a great choice for inpatient hospitals and other commercial environments that require increased filtration.