Best 18x1return Air Grille

18x25x1 Merv 8 Pleated AC Furnace Air Filters Box of 6 Actual Size 17-1/2 x 24-1/2 x 7/8

18x25x1 AC Furnace Air Filter MERV 8. Box of 6.
Actual Size: 17-1/2 x 24-1/2 x 7/8. Filter Rating: MERV 8 - 10 | FPR 5 - 6 | MPR 600 - 700..
Air Filters for homes, business, schools, apartments, hotels and industrial..
Pleat consistency maximizes performance. Achieves MERV 8 pressure drop and air flow with improved MERV 10 filtration..
Manufactured by Glasfloss. Made in the USA.

14x18x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 13.50 x 17.50 x 0.75 inches).
MERV 13 synthetic media (comparable with MPR 1500-1900 & FPR 10) protects homes optimally by trapping 98% of airborne particles without impacting air....
High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products....
Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs.
All components are manufactured within the United States and designed with recyclable materials.

18x25x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 17.50 x 24.50 x 0.75 inches).
MERV 13 synthetic media (comparable with MPR 1500-1900 & FPR 10) protects homes optimally by trapping 98% of airborne particles without impacting air....
High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products....
Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs.
All components are manufactured within the United States and designed with recyclable materials.

18x20x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 17.50 x 19.5 x 0.75 inches).
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.
Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs.
All components are manufactured within the United States and designed with recyclable materials.

18x30x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 17.75 x 29.75 x 0.75 inches).
MERV 11 synthetic media (comparable with MPR 1000-1200 & FPR 7) protects homes from pets or allergies by trapping 95% 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.
Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs.
All components are manufactured within the United States and designed with recyclable materials.

18x30x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 17.75 x 29.75 x 0.75 inches).
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.
Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs.
All components are manufactured within the United States and designed with recyclable materials.

18x22x1 NOMINAL: The actual size of this replacement filter is 17.5" x 21.5" x 0.75".
MERV 11 RATING: With an efficiency of 85% or better, these filters are usually the best option for residential homes & light commercial applications that require slightly increased filtration of particles, such as those with pets.
CAPTURES PARTICLES: Breathe easier in your home as our filter clears the air of dust, lint, hair, debris and other indoor impurities..
AFFORDABLE QUALITY: SpiroPure air filters are sold in packs to save you even more without cutting corners on material quality, efficiency, or filtration performance..
MADE IN USA: Our pleated furnace 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..

14x18x1 NOMINAL: The actual size of this replacement filter is 13.5" x 17.5" x 0.75".
MERV 11 RATING: With an efficiency of 85% or better, these filters are usually the best option for residential homes & light commercial applications that require slightly increased filtration of particles, such as those with pets.
CAPTURES PARTICLES: Breathe easier in your home as our filter clears the air of dust, lint, hair, debris and other indoor impurities..
AFFORDABLE QUALITY: SpiroPure air filters are sold in packs to save you even more without cutting corners on material quality, efficiency, or filtration performance..
MADE IN USA: Our pleated furnace 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..

14x18x1 Odor Eliminator Air Filter with Activated Carbon for AC HVAC and Furnace – MERV 8 (Pack of 6).
BLOCKS UNWANTED ODORS: Removes ODORS from smoke, pets, and cooking to let clean air pass through.
IMPROVES INDOOR AIR QUALITY: Traps dust, debris, lint, pollen, and pet dander.
MADE IN THE USA: All components are 100% manufactured by FilterBuy in the USA.
LONG-LASTING: Designed to last up to 3 months. Replace regularly for optimum performance.