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Quality HVAC Filters for Residential & Commercial, All Sizes, Free Shipping!
Quality HVAC Filters, All Sizes, Free Shipping!
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20x20x1 HVAC, Furnace, AC and Heat Pump Filters

Optimize your HVAC system with our superior 20x20x1 furnace and AC filters. Perfect for both residential and commercial settings, these filters from leading brands offer outstanding air filtration, improving air quality and system longevity. Shop our 20x20x1 filters today.

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$ 154.54 - $ 154.54
$ 154.54
$ 154.54 - $ 154.54
$ 154.54

20x20x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 12 112-662-005 (1 Filter)

Koch

Multi-Flo S Medium and High Efficiency The Koch Multi-Flo S is a rigid, extended surface air filter engineered to provide me...

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$ 154.54 - $ 154.54
$ 154.54
$ 154.54 - $ 154.54
$ 154.54
$ 142.69 - $ 142.69
$ 142.69
$ 142.69 - $ 142.69
$ 142.69

20x20x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge NHM (No Header) MERV 12 112-652-005 (1 Filter)

Koch

Multi-Flo S Medium and High Efficiency The Koch Multi-Flo S is a rigid, extended surface air filter engineered to provide me...

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$ 142.69 - $ 142.69
$ 142.69
$ 142.69 - $ 142.69
$ 142.69
$ 159.67 - $ 159.67
$ 159.67
$ 159.67 - $ 159.67
$ 159.67

20x20x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 14 112-661-005 (1 Filter)

Koch

Multi-Flo S Medium and High Efficiency The Koch Multi-Flo S is a rigid, extended surface air filter engineered to provide me...

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$ 159.67 - $ 159.67
$ 159.67
$ 159.67 - $ 159.67
$ 159.67
$ 151.28 - $ 151.28
$ 151.28
$ 151.28 - $ 151.28
$ 151.28

20x20x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge NHM (No Header) MERV 14 112-651-005 (1 Filter)

Koch

Multi-Flo S Medium and High Efficiency The Koch Multi-Flo S is a rigid, extended surface air filter engineered to provide me...

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$ 151.28 - $ 151.28
$ 151.28
$ 151.28 - $ 151.28
$ 151.28
$ 173.42 - $ 173.42
$ 173.42
$ 173.42 - $ 173.42
$ 173.42

20x20x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 15 112-660-005 (1 Filter)

Koch

Multi-Flo S Medium and High Efficiency The Koch Multi-Flo S is a rigid, extended surface air filter engineered to provide me...

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$ 173.42 - $ 173.42
$ 173.42
$ 173.42 - $ 173.42
$ 173.42
$ 162.36 - $ 162.36
$ 162.36
$ 162.36 - $ 162.36
$ 162.36

20x20x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge NHM (No Header) MERV 15 112-650-005 (1 Filter)

Koch

Multi-Flo S Medium and High Efficiency The Koch Multi-Flo S is a rigid, extended surface air filter engineered to provide me...

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$ 162.36 - $ 162.36
$ 162.36
$ 162.36 - $ 162.36
$ 162.36
$ 231.57 - $ 231.57
$ 231.57
$ 231.57 - $ 231.57
$ 231.57

20x20x12 Koch Multi-Cell Galvanized MERV 11 No Header 110-714-005

Koch

Multi-Cell Air Filters Medium & High Efficiency Extended Surface Air Filters Features: Three efficiency ranges Multiple frame and header optio...

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$ 231.57 - $ 231.57
$ 231.57
$ 231.57 - $ 231.57
$ 231.57
$ 243.71 - $ 243.71
$ 243.71
$ 243.71 - $ 243.71
$ 243.71

20x20x12 Koch Multi-Cell Galvanized MERV 11 Double Header 110-724-005

Koch

Multi-Cell Air Filters Medium & High Efficiency Extended Surface Air Filters Features: Three efficiency ranges Multiple frame and header optio...

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$ 243.71 - $ 243.71
$ 243.71
$ 243.71 - $ 243.71
$ 243.71
$ 230.74 - $ 230.74
$ 230.74
$ 230.74 - $ 230.74
$ 230.74

20x20x12 Koch Multi-Cell Galvanized MERV 11 Single Header 110-734-005

Koch

Multi-Cell Air Filters Medium & High Efficiency Extended Surface Air Filters Features: Three efficiency ranges Multiple frame and header optio...

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$ 230.74 - $ 230.74
$ 230.74
$ 230.74 - $ 230.74
$ 230.74
$ 231.57 - $ 231.57
$ 231.57
$ 231.57 - $ 231.57
$ 231.57

20x20x12 Koch Multi-Cell Galvanized MERV 13 No Header 110-712-005

Koch

Multi-Cell Air Filters Medium & High Efficiency Extended Surface Air Filters Features: Three efficiency ranges Multiple frame and header optio...

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$ 231.57 - $ 231.57
$ 231.57
$ 231.57 - $ 231.57
$ 231.57
$ 243.71 - $ 243.71
$ 243.71
$ 243.71 - $ 243.71
$ 243.71

20x20x12 Koch Multi-Cell Galvanized MERV 13 Double Header 110-722-005

Koch

Multi-Cell Air Filters Medium & High Efficiency Extended Surface Air Filters Features: Three efficiency ranges Multiple frame and header optio...

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$ 243.71 - $ 243.71
$ 243.71
$ 243.71 - $ 243.71
$ 243.71
$ 230.74 - $ 230.74
$ 230.74
$ 230.74 - $ 230.74
$ 230.74

20x20x12 Koch Multi-Cell Galvanized MERV 13 Single Header 110-732-005

Koch

Multi-Cell Air Filters Medium & High Efficiency Extended Surface Air Filters Features: Three efficiency ranges Multiple frame and header optio...

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$ 230.74 - $ 230.74
$ 230.74
$ 230.74 - $ 230.74
$ 230.74
$ 250.32 - $ 250.32
$ 250.32
$ 250.32 - $ 250.32
$ 250.32

20x20x12 Koch Multi-Cell Galvanized MERV 14 No Header 110-710-005

Koch

Multi-Cell Air Filters Medium & High Efficiency Extended Surface Air Filters Features: Three efficiency ranges Multiple frame and header optio...

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$ 250.32 - $ 250.32
$ 250.32
$ 250.32 - $ 250.32
$ 250.32
$ 253.30 - $ 253.30
$ 253.30
$ 253.30 - $ 253.30
$ 253.30

20x20x12 Koch Multi-Cell Galvanized MERV 14 Double Header 110-720-005

Koch

Multi-Cell Air Filters Medium & High Efficiency Extended Surface Air Filters Features: Three efficiency ranges Multiple frame and header optio...

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$ 253.30 - $ 253.30
$ 253.30
$ 253.30 - $ 253.30
$ 253.30
$ 238.41 - $ 238.41
$ 238.41
$ 238.41 - $ 238.41
$ 238.41

20x20x12 Koch Multi-Cell Galvanized MERV 14 Single Header 110-730-005

Koch

Multi-Cell Air Filters Medium & High Efficiency Extended Surface Air Filters Features: Three efficiency ranges Multiple frame and header optio...

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$ 238.41 - $ 238.41
$ 238.41
$ 238.41 - $ 238.41
$ 238.41
$ 149.99 - $ 149.99
$ 149.99
$ 149.99 - $ 149.99
$ 149.99

20x20x1 RTF Washable Reusable Air Filter - Eco-Friendly & Durable

RTF

The RTF Washable MERV 9 sets a new standard for washable, permanent filters with its advanced polypropylene weave technology, achieving the highest...

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$ 149.99 - $ 149.99
$ 149.99
$ 149.99 - $ 149.99
$ 149.99
20x20x1 Koch Disposable Polyester Panel 284-200-200 (12 Filters)
$ 70.99 - $ 70.99
$ 70.99
$ 70.99 - $ 70.99
$ 70.99

20x20x1 Koch Disposable Polyester Panel 284-200-200 (12 Filters)

Koch

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Polyester Panel Filters are versatile and suitable for a...

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$ 70.99 - $ 70.99
$ 70.99
$ 70.99 - $ 70.99
$ 70.99
$ 51.99 - $ 51.99
$ 51.99
$ 51.99 - $ 51.99
$ 51.99

20x20x1 NaturalAire Odor Eliminator Filters with Baking Soda (4 Pack)

AAF Flanders

The NaturalAire Odor Eliminator with Baking Soda air filter neutralizes common household odors. It uses the power of baking soda to rid your home o...

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$ 51.99 - $ 51.99
$ 51.99
$ 51.99 - $ 51.99
$ 51.99
20x20x12 AAF Flanders VariCel Single Header MERV 14 | 331-946-136
$ 237.67 - $ 237.67
$ 237.67
$ 237.67 - $ 237.67
$ 237.67

20x20x12 AAF Flanders VariCel Single Header MERV 14 | 331-946-136

AAF Flanders

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

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$ 237.67 - $ 237.67
$ 237.67
$ 237.67 - $ 237.67
$ 237.67
20x20x12 AAF Flanders VariCel Single Header MERV 11 | 331-953-136
$ 221.97 - $ 221.97
$ 221.97
$ 221.97 - $ 221.97
$ 221.97

20x20x12 AAF Flanders VariCel Single Header MERV 11 | 331-953-136

AAF Flanders

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

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$ 221.97 - $ 221.97
$ 221.97
$ 221.97 - $ 221.97
$ 221.97
20x20x1 PREpleat MERV 11 Standard Capacity 85655.012020M11 (12 Filters)
Ahorre 42% Ahorre %
$ 146.99
$ 146.99 - $ 146.99
$ 146.99
$ 84.88
$ 84.88 - $ 84.88
$ 84.88

WAREHOUSE DEAL 20x20x1 PREpleat MERV 11 Standard Capacity 85655.012020M11 (12 Filters)

AAF Flanders

This warehouse deal is a closeout sale with possible minor damage or imperfections on the filters and/or box. Each filter has been carefully inspec...

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$ 146.99
$ 146.99 - $ 146.99
$ 146.99
$ 84.88
$ 84.88 - $ 84.88
$ 84.88
Ahorre 42% Ahorre %
$ 156.99 - $ 156.99
$ 156.99
$ 156.99 - $ 156.99
$ 156.99

Pre Plisado 62R MERV 11 (12 Filtros) 85755.012020M11

AAF Flanders

El filtro de panel plisado MERV 11 preplisado de alta capacidad 62RM11 permite una mejora significativa en la eficiencia de recolección con respect...

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$ 156.99 - $ 156.99
$ 156.99
$ 156.99 - $ 156.99
$ 156.99
20x20x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
Ahorre 22% Ahorre %
$ 183.30
$ 183.30 - $ 183.30
$ 183.30
$ 142.99
$ 142.99 - $ 142.99
$ 142.99

WAREHOUSE DEAL 20x20x1 NaturalAire Healthy Ultra MERV 13 Filters 95003.012020 (10 pack)

AAF Flanders

The NaturalAire MERV 13 air filter removes potentially harmful particles to keep the air in your home or office clean and healthier. This premium r...

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$ 183.30
$ 183.30 - $ 183.30
$ 183.30
$ 142.99
$ 142.99 - $ 142.99
$ 142.99
Ahorre 22% Ahorre %

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