Top 10 16.5x21x1 Air Filter – Furnace Filters

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1. Aerostar

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6 Pack Actual Size: 16 1/2"x21 1/2"x3/4", Aerostar 16 1/2 x 21 1/2 x 1 MERV 8 Pleated Air Filter, AC Furnace Air Filter

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Aerostar #ad - Nominal size: 16 1/2x21 1/2x1; actual size: 16 1/2"x21 1/2"x3/4"; this mERV 8 filter is comparable with MPR 600 & FPR 5. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months.

Designed to filter microscopic particles such as lint, spores, dust mites, and pollen. Simple to install and a cost-effective step towards a healthier home environment. Manufactured in the usa by filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive. 100% synthetic electrostatic media for high efficiency with low air flow resistance.
BrandAerostar #ad
ManufacturerFiltration Group (Environmental Air) #ad
Height0.75 Inches
Length16.5 Inches
Width21.5 Inches
Part Number16 1/2x21 1/2x1 MERV 8
Model16 1/2x21 1/2x1 MERV 8

2. Aerostar

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Aerostar 16 3/8 x 21 1/2 x 1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack Actual Size: 16 3/8"x21 1/2"x3/4"

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Aerostar #ad - Designed to filter microscopic particles such as lint, pollen, fine dust, spores, pet dander, dust mites, and smoke. Simple to install and a cost-effective step towards a healthier home environment.

Manufactured in the usa by filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months. Nominal size: 16 3/8x21 1/2x1; actual size: 16 3/8"x21 1/2"x3/4"; this merv 11 filter is comparable with MPR 1000-1200 & FPR 7. 100% synthetic electrostatic media for high efficiency with low air flow resistance.
BrandAerostar #ad
ManufacturerFiltration Group (Environmental Air) #ad
Height0.75 Inches
Length16.38 Inches
Width21.5 Inches
Part Number16 3/8x21 1/2x1 MERV 11
Model16 3/8x21 1/2x1 MERV 11

3. Accumulair

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Accumulair Gold 16.5x21x1 Actual Size MERV 8 Air Filter/Furnace Filter 2 Pack

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Accumulair #ad - Enhances indoor air quality for up to 3 months. Typically ideal for residential homes, small commercial businesses, and workplaces desiring to reduce common airborne containments. 16. 5x21x1 actual size merv 8 – tested and rated according to ASHRAE Standard 52. 2. Pleated electrostatic media provides a high filtration efficiency without comprising your system's airflow. Captures up to 76% of common airborne particles such as dust, dust mite debris, standing dust, small fibers, cement dust, lint, and other airborne contaminants.
BrandAccumulair #ad
ManufacturerAccumulair #ad
Height0.75 Inches
Length16.5 Inches
Weight1 Pounds
Width21 Inches
Part NumberFB16.5X21A_2
ModelFB16.5X21A_2

4. Accumulair

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Accumulair Platinum 16.5x21x1 Actual Size MERV 11 Air Filter/Furnace Filters 6 pack

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Accumulair #ad - Typically ideal for homes with pets, restaurants, superior commercial buildings, superior residential buildings, and workplaces. Tribo-electric synthetic media provides high filtration efficiency, low air resistance, and is hydrophobic does not absorb moisture. 16. 5x21x1 actual size merv 11 - tested and rated according to ASHRAE Standard 52. 2. Enhance air quality for up to 3 months. Captures up to 94% or more of airborne contaminants such as dust, pet dander, lead dust, dust mite debris, cement dust, standing dust, small fibers, lint, and other airborne contaminants.
BrandAccumulair #ad
ManufacturerAccumulair® #ad
Height0.75 Inches
Length16.5 Inches
Weight1 Pounds
Width21 Inches
Part Number886566135970
Model886566135970

5. Aerostar

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AC Furnace Air Filter, Aerostar 16 3/8 x 21 1/2 x 1 MERV 11 Pleated Air Filter, 4 Pack Actual Size: 16 3/8"x21 1/2"x3/4"

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Aerostar #ad - Nominal size: 16 3/8x21 1/2x1; actual size: 16 3/8"x21 1/2"x3/4"; this merv 11 filter is comparable with MPR 1000-1200 & FPR 7. Designed to filter microscopic particles such as lint, pollen, fine dust, dust mites, spores, pet dander, and smoke.

Manufactured in the usa by filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive. 100% synthetic electrostatic media for high efficiency with low air flow resistance. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months. Simple to install and a cost-effective step towards a healthier home environment.
BrandAerostar #ad
ManufacturerFiltration Group #ad
Height0.75 Inches
Length16.38 Inches
Width21.5 Inches
Part Number16 3/8x21 1/2x1 MERV 11
Model16 3/8x21 1/2x1 MERV 11

6. Eco-Aire

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Box of 6, 16 1/2 x 21 5/8 x 1 MERV 8 Pleated Air Filter

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Eco-Aire #ad - Nominal: 16 1/2x21 5/8x1 or 16 1/2 x 21 5/8 x 1, size: 16 1/2"x21 5/8"x3/4", AC Furnace Air Filter. Made in the USA. Ships direct, Factory Sealed. Comparable to Brand Filters. Designed to last up to 60 Days.
BrandEco-Aire #ad
ManufacturerFiltration Group #ad
Height1 Inches
Length16 Inches
Width21.63 Inches
Part Number16 1/2x21 5/8x1 MERV 8

7. Aerostar

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AC Furnace Air Filter, 4 Pack Actual Size: 16 1/2" x 21 1/2" x 3/4", Aerostar 16 1/2x21 1/2x1 MERV 13 Pleated Air Filter

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Aerostar #ad - Designed to filter microscopic particles such as lint, dust mites, spores, pet dander, pollen, fine dust, smoke, and bacteria. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months. Simple to install and a cost-effective step towards a healthier home environment. Nominal size: 16 1/2x21 1/2x1; actual size: 16 1/2" x 21 1/2" x 3/4". 100% synthetic electrostatic media for high efficiency with low air flow resistance. Comparable to mpr 1500 to 1900 ultimate Allergen Defense and Honeywell Allergen Elite FPR 10 .
BrandAerostar #ad
ManufacturerFiltration Group #ad
Height1 Inches
Length16.5 Inches
Width21.5 Inches
Part Number16 1/2x21 1/2x1 MERV 13

8. Aerostar

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AC Furnace Air Filter, Aerostar 16x21x1 MERV 8 Pleated Air Filter, 6 Pack Actual Size: 15 7/8" x 20 7/8" x 3/4"

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Aerostar #ad - For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months. Comparable to mpr 600 clean living and Honeywell Micro Defense Plus FPR 5. Nominal size: 16x21x1; actual size: 15 7/8" x 20 7/8" x 3/4". Simple to install and a cost-effective step towards a healthier home environment. 100% synthetic electrostatic media for high efficiency with low air flow resistance. Designed to filter microscopic particles such as lint, dust mites, spores, and pollen.
BrandAerostar #ad
ManufacturerFiltration Group #ad
Height1 Inches
Length16 Inches
Width21 Inches
Part Number16x21x1 MERV 8

9. Eco-Aire

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16 1/2 x 21 1/2 x 1 MERV 8 Pleated Air Filter, Box of 6

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Eco-Aire #ad - Designed to last up to 60 Days. Nominal: 16 1/2x21 1/2x1 or 16 1/2 x 21 1/2 x 1, size: 16 1/2"x21 1/2"x3/4", AC Furnace Air Filter. Comparable to Brand Filters. Ships direct, Factory Sealed. Made in the USA.
BrandEco-Aire #ad
ManufacturerFiltration Group #ad
Height1 Inches
Length16.5 Inches
Width21.5 Inches
Part Number16 1/2x21 1/2x1 MERV 8

10. Aerostar

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AC Furnace Air Filter, 6-Pack Actual Size: 16 1/2" x 21 1/2" x 3/4", Aerostar 16 1/2x21 1/2x1 MERV 13 Pleated Air Filter, Captures Virus Particles

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Aerostar #ad - Check your fit - nominal size: 16 1/2x21 1/2x1; actual size: 16 1/2"x21 1/2"x3/4"; this MERV 13 filter is comparable with MPR 1500-1900 & FPR 10 For best results, change your filters every 60 to 90 days during normal times of year but increase frequency to 30 days during peak summer and winter months when your unit is working the hardest.

Designed to filter microscopic particles such as lint, spores, pollen, dust mites, smoke, viruses, fine dust, pet dander, and bacteria. Improve indoor air quality - protect your family and loved ones with clean indoor air quality at home. Aerostar filters are a simple to install and cost-effective step towards a healthier home environment.

Made in the usa - aerostar filters are manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions for residential, commercial and industrial applications. High performing - 100% synthetic electrostatic media for high efficiency with low air flow resistance.
BrandAerostar #ad
ManufacturerFiltration Group (Environmental Air) #ad
Height6 Inches
Length22 Inches
Weight2 Pounds
Width17 Inches
Part Number16 1/2x21 1/2x1
Model16 1/2x21 1/2x1 MERV 13