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Rigid HVAC Filters

Enhance your HVAC system’s performance with our premium selection of rigid filters, designed to meet the highest standards of air filtration across various applications.

Our Rigid HVAC Filter Collection Includes:

• Multi-Cell Filters: High-efficiency, extended surface filters ideal for variable air volume (VAV) systems, available in multiple efficiencies and configurations.

• DuraMAX Series: Rigid, extended surface minipleat filters offering low pressure drop and prolonged service life, suitable for demanding environments.

• MicroMAX Filters: Compact, extended surface minipleat filters providing high efficiency and low pressure drop, perfect for standard HVAC systems.

• Multi-Flo Series: Rigid, extended surface filters engineered for medium to high efficiency air filtration with durable construction, suitable for VAV applications. 

Our rigid filters are constructed with robust materials to withstand variable air volumes and high velocities, ensuring consistent performance and durability. They are available in various sizes and efficiency ratings to accommodate your specific HVAC requirements.

Invest in our rigid HVAC filters to maintain optimal indoor air quality, protect your HVAC equipment, and enhance overall system efficiency.

For detailed specifications and to select the appropriate filter for your needs, please refer to the individual product pages.

Filters

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Flanders AAF Pleated Filter 12x24x12 Flanders Precisionaire Rigid Air Filters PRP65S2412 - 2 Filters
$ 329.99 - $ 329.99
$ 329.99
$ 329.99 - $ 329.99
$ 329.99

12x24x12 Flanders Precisionaire Rigid Air Filters PRP65S2412 (2 Filters)

AAF Flanders

Rigid-Air extended media surface rigid filters are designed for use in most commercial or industrial HVAC systems where medium to high efficiency f...

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$ 329.99 - $ 329.99
$ 329.99
$ 329.99 - $ 329.99
$ 329.99
Flanders AAF Pleated Filter 12x24x12 Flanders Precisionaire Rigid Air Filters PRP65S2412 - 2 Filters Save 24% Save %
$ 329.99
$ 329.99 - $ 329.99
$ 329.99
$ 249.88
$ 249.88 - $ 249.88
$ 249.88

WAREHOUSE DEAL 12x24x12 Flanders Precisionaire Rigid Air Filters PRP65S2412 (2 Filters)

AAF Flanders

Rigid-Air extended media surface rigid filters are designed for use in most commercial or industrial HVAC systems where medium to high efficiency f...

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$ 329.99
$ 329.99 - $ 329.99
$ 329.99
$ 249.88
$ 249.88 - $ 249.88
$ 249.88
Save 24% Save %
$ 281.98 - $ 281.98
$ 281.98
$ 281.98 - $ 281.98
$ 281.98

20x20x6 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 11 112-663-008 (2 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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$ 281.98 - $ 281.98
$ 281.98
$ 281.98 - $ 281.98
$ 281.98
$ 287.68 - $ 287.68
$ 287.68
$ 287.68 - $ 287.68
$ 287.68

24x20x6 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 11 112-663-007 (2 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...

View full details
$ 287.68 - $ 287.68
$ 287.68
$ 287.68 - $ 287.68
$ 287.68
$ 153.17 - $ 153.17
$ 153.17
$ 153.17 - $ 153.17
$ 153.17

24x20x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 11 112-663-006 (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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$ 153.17 - $ 153.17
$ 153.17
$ 153.17 - $ 153.17
$ 153.17
$ 151.38 - $ 151.38
$ 151.38
$ 151.38 - $ 151.38
$ 151.38

20x20x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 11 112-663-005 (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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$ 151.38 - $ 151.38
$ 151.38
$ 151.38 - $ 151.38
$ 151.38
$ 479.72 - $ 479.72
$ 479.72
$ 479.72 - $ 479.72
$ 479.72

24x12x6 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 11 112-663-004 (4 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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$ 479.72 - $ 479.72
$ 479.72
$ 479.72 - $ 479.72
$ 479.72
$ 277.82 - $ 277.82
$ 277.82
$ 277.82 - $ 277.82
$ 277.82

24x24x6 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 11 112-663-003 (2 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...

View full details
$ 277.82 - $ 277.82
$ 277.82
$ 277.82 - $ 277.82
$ 277.82
$ 246.62 - $ 246.62
$ 246.62
$ 246.62 - $ 246.62
$ 246.62

24x12x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 11 112-663-002 (2 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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$ 246.62 - $ 246.62
$ 246.62
$ 246.62 - $ 246.62
$ 246.62
$ 146.51 - $ 146.51
$ 146.51
$ 146.51 - $ 146.51
$ 146.51

24x24x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 11 112-663-001 (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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$ 146.51 - $ 146.51
$ 146.51
$ 146.51 - $ 146.51
$ 146.51
$ 259.66 - $ 259.66
$ 259.66
$ 259.66 - $ 259.66
$ 259.66

20x20x6 Multi-Flo Synthetic Extended Surface Rigid Cartridge NHM (No Header) MERV 11 112-653-008 (2 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...

View full details
$ 259.66 - $ 259.66
$ 259.66
$ 259.66 - $ 259.66
$ 259.66
$ 231.02 - $ 231.02
$ 231.02
$ 231.02 - $ 231.02
$ 231.02

24x20x6 Multi-Flo Synthetic Extended Surface Rigid Cartridge NHM (No Header) MERV 11 112-653-007 (2 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...

View full details
$ 231.02 - $ 231.02
$ 231.02
$ 231.02 - $ 231.02
$ 231.02
$ 148.19 - $ 148.19
$ 148.19
$ 148.19 - $ 148.19
$ 148.19

24x20x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge NHM (No Header) MERV 11 112-653-006 (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...

View full details
$ 148.19 - $ 148.19
$ 148.19
$ 148.19 - $ 148.19
$ 148.19
$ 141.54 - $ 141.54
$ 141.54
$ 141.54 - $ 141.54
$ 141.54

20x20x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge NHM (No Header) MERV 11 112-653-005 (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...

View full details
$ 141.54 - $ 141.54
$ 141.54
$ 141.54 - $ 141.54
$ 141.54
$ 439.00 - $ 439.00
$ 439.00
$ 439.00 - $ 439.00
$ 439.00

24x12x6 Multi-Flo Synthetic Extended Surface Rigid Cartridge NHM (No Header) MERV 11 112-653-004 (4 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...

View full details
$ 439.00 - $ 439.00
$ 439.00
$ 439.00 - $ 439.00
$ 439.00
$ 253.58 - $ 253.58
$ 253.58
$ 253.58 - $ 253.58
$ 253.58

24x24x6 Multi-Flo Synthetic Extended Surface Rigid Cartridge NHM (No Header) MERV 11 112-653-003 (2 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...

View full details
$ 253.58 - $ 253.58
$ 253.58
$ 253.58 - $ 253.58
$ 253.58
$ 237.14 - $ 237.14
$ 237.14
$ 237.14 - $ 237.14
$ 237.14

24x12x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge NHM (No Header) MERV 11 112-653-002 (2 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...

View full details
$ 237.14 - $ 237.14
$ 237.14
$ 237.14 - $ 237.14
$ 237.14
$ 137.54 - $ 137.54
$ 137.54
$ 137.54 - $ 137.54
$ 137.54

24x24x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge NHM (No Header) MERV 11 112-653-001 (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...

View full details
$ 137.54 - $ 137.54
$ 137.54
$ 137.54 - $ 137.54
$ 137.54
$ 287.88 - $ 287.88
$ 287.88
$ 287.88 - $ 287.88
$ 287.88

20x20x6 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 12 112-662-008 (2 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...

View full details
$ 287.88 - $ 287.88
$ 287.88
$ 287.88 - $ 287.88
$ 287.88
$ 293.68 - $ 293.68
$ 293.68
$ 293.68 - $ 293.68
$ 293.68

24x20x6 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 12 112-662-007 (2 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...

View full details
$ 293.68 - $ 293.68
$ 293.68
$ 293.68 - $ 293.68
$ 293.68
$ 158.22 - $ 158.22
$ 158.22
$ 158.22 - $ 158.22
$ 158.22

24x20x12 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 12 112-662-006 (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...

View full details
$ 158.22 - $ 158.22
$ 158.22
$ 158.22 - $ 158.22
$ 158.22
$ 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...

View full details
$ 154.54 - $ 154.54
$ 154.54
$ 154.54 - $ 154.54
$ 154.54
$ 489.72 - $ 489.72
$ 489.72
$ 489.72 - $ 489.72
$ 489.72

24x12x6 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 12 112-662-004 (4 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...

View full details
$ 489.72 - $ 489.72
$ 489.72
$ 489.72 - $ 489.72
$ 489.72
$ 283.62 - $ 283.62
$ 283.62
$ 283.62 - $ 283.62
$ 283.62

24x24x6 Multi-Flo Synthetic Extended Surface Rigid Cartridge FM (Single Header) MERV 12 112-662-003 (2 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...

View full details
$ 283.62 - $ 283.62
$ 283.62
$ 283.62 - $ 283.62
$ 283.62

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