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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.

Filters

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$ 358.56 - $ 358.56
$ 358.56
$ 358.56 - $ 358.56
$ 358.56

20x20x12 Multi-Sak Extended Surface Bag Air Filters MERV 15 209-105-412 (6 Filters)

Koch

Multi-Sak The Koch Multi-Sak is an extended surface air filter, designed for most medium and high efficiency air filtration ...

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$ 358.56 - $ 358.56
$ 358.56
$ 358.56 - $ 358.56
$ 358.56
$ 366.42 - $ 366.42
$ 366.42
$ 366.42 - $ 366.42
$ 366.42

20x20x15 Multi-Sak Extended Surface Bag Air Filters MERV 15 209-105-415 (6 Filters)

Koch

Multi-Sak The Koch Multi-Sak is an extended surface air filter, designed for most medium and high efficiency air filtration ...

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$ 366.42 - $ 366.42
$ 366.42
$ 366.42 - $ 366.42
$ 366.42
$ 390.30 - $ 390.30
$ 390.30
$ 390.30 - $ 390.30
$ 390.30

20x20x18 Multi-Sak Extended Surface Bag Air Filters MERV 15 209-105-418 (6 Filters)

Koch

Multi-Sak The Koch Multi-Sak is an extended surface air filter, designed for most medium and high efficiency air filtration ...

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$ 390.30 - $ 390.30
$ 390.30
$ 390.30 - $ 390.30
$ 390.30
$ 389.58 - $ 389.58
$ 389.58
$ 389.58 - $ 389.58
$ 389.58

20x20x12 Multi-Sak Extended Surface Bag Air Filters MERV 15 209-106-412 (6 Filters)

Koch

Multi-Sak The Koch Multi-Sak is an extended surface air filter, designed for most medium and high efficiency air filtration ...

View full details
$ 389.58 - $ 389.58
$ 389.58
$ 389.58 - $ 389.58
$ 389.58
$ 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

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