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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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20x24x4 HVAC, Furnace, AC and Heat Pump Filters

Enhance your HVAC system with the best 20x24x4 furnace and AC filters. Our collection features top brands known for their quality and performance, ensuring your air remains clean and your system efficient. Choose our 20x24x4 filters for reliable filtration.

Filters

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$ 549.30 - $ 549.30
$ 549.30
$ 549.30 - $ 549.30
$ 549.30

20x24x4 Koch Multi-Pleat Boss Heavy Duty High Capacity MERV 13 102-714-129 (6 Filters)

Koch

Multi-Pleat BOSS Heavy Duty Premium High-Capacity, High Strength Pleated Filter Premium heavy duty construction Heavy gage expanded metal backin...

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$ 549.30 - $ 549.30
$ 549.30
$ 549.30 - $ 549.30
$ 549.30
$ 204.54 - $ 204.54
$ 204.54
$ 204.54 - $ 204.54
$ 204.54

20x24x4 Koch Multi-Pleat Boss Heavy Duty High Capacity MERV 11 102-500-129 (6 Filters)

Koch

Multi-Pleat BOSS Heavy Duty Premium High-Capacity, High Strength Pleated Filter Premium heavy duty construction Heavy gage expanded metal backin...

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$ 204.54 - $ 204.54
$ 204.54
$ 204.54 - $ 204.54
$ 204.54
$ 186.24 - $ 186.24
$ 186.24
$ 186.24 - $ 186.24
$ 186.24

20x24x4 Koch Multi-Pleat Boss Heavy Duty High Capacity MERV 9 102-701-129 (6 Filters)

Koch

Multi-Pleat BOSS Heavy Duty Premium High-Capacity, High Strength Pleated Filter Premium heavy duty construction Heavy gage expanded metal backin...

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$ 186.24 - $ 186.24
$ 186.24
$ 186.24 - $ 186.24
$ 186.24
$ 444.54 - $ 444.54
$ 444.54
$ 444.54 - $ 444.54
$ 444.54

20x24x4 Koch Multi-Pleat Green13 MERV 13 High Capacity 102-714-029 (6 Filters)

Koch

Multi-Pleat GREEN 13 MERV 13 performance rating in accordance with ASHRAE Test Standard 52.2-2012 Earns LEED points Reduces energy cost Extended...

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$ 444.54 - $ 444.54
$ 444.54
$ 444.54 - $ 444.54
$ 444.54
$ 177.12 - $ 177.12
$ 177.12
$ 177.12 - $ 177.12
$ 177.12

20x24x4 Koch Multi-Pleat XL11 MERV 11 High Capacity 102-500-029 (6 Filters)

Koch

Multi-Pleat XL11-HC Upgrade from standard pleated filter MERV 11 efficiency Low pressure drop High dust holding capacity Superior Efficiency Th...

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$ 177.12 - $ 177.12
$ 177.12
$ 177.12 - $ 177.12
$ 177.12
$ 162.00 - $ 162.00
$ 162.00
$ 162.00 - $ 162.00
$ 162.00

20x24x4 Koch Multi-Pleat XL11 MERV 11 102-499-029 (6 Filters)

Koch

Multi-Pleat XL11 MERV 11 Upgrade from standard pleated filters MERV 11 rating Available in standard and high capacity Dual-layered filter media ...

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$ 162.00 - $ 162.00
$ 162.00
$ 162.00 - $ 162.00
$ 162.00
$ 160.74 - $ 160.74
$ 160.74
$ 160.74 - $ 160.74
$ 160.74

20x24x4 Koch Multi-Pleat XL10 MERV 10 High Capacity 102-390-029 (6 Filters)

Koch

Multi-Pleat XL10-HC Upgrade from standard pleated filter MERV 10 efficiency Low resistance to airflow The Koch Multi-Pleat XL10-HC is a medium ...

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$ 160.74 - $ 160.74
$ 160.74
$ 160.74 - $ 160.74
$ 160.74
$ 117.00 - $ 117.00
$ 117.00
$ 117.00 - $ 117.00
$ 117.00

20x24x4 Koch Multi-Pleat XL10 MERV 10 102-380-028 (6 Filters)

Koch

Multi-Pleat XL10 MERV 10 Extended Surface Pleated Panel Filters with Mechanical Media MERV 10 rating Available in standard and high capacity Mec...

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$ 117.00 - $ 117.00
$ 117.00
$ 117.00 - $ 117.00
$ 117.00
$ 147.42 - $ 147.42
$ 147.42
$ 147.42 - $ 147.42
$ 147.42

20x24x4 Koch Multi-Pleat XL8 MERV 8 High Capacity 102-701-029 (6 Filters)

Koch

Multi-Pleat XL8 MERV 8 Extended Surface Pleated Panel Filters with Mechanical Media Upgrade from standard pleated fi...

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$ 147.42 - $ 147.42
$ 147.42
$ 147.42 - $ 147.42
$ 147.42
20x24x4 Koch Multi-Pleat XL8 Standard Capacity MERV 8 102-700-029 (6 Filters)
$ 123.30 - $ 123.30
$ 123.30
$ 123.30 - $ 123.30
$ 123.30

20x24x4 Koch Multi-Pleat XL8 Standard Capacity MERV 8 102-700-029 (6 Filters)

Koch

Standard Capacity Extended Surface Pleated Panel Filter Features Upgrade from standard pleated filters MERV 8 and MERV 8...

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$ 123.30 - $ 123.30
$ 123.30
$ 123.30 - $ 123.30
$ 123.30

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