20x24x2 HVAC, Furnace, AC and Heat Pump Filters

Last stock, all sales final. This filter is discontinued by the manufacturer AAF Flanders. The recommended replacements are the AAF Flanders Perfec...

We're excited to introduce the newly improved AAF Flanders PREpleat LPD (Low Pressure Drop) SC (Standard Capacity) filter, now featuring a MERV 10 ...

Last stock, all sales final. This filter is discontinued by the manufacturer AAF Flanders. The recommended replacement can be found at the link bel...

PerfectPleat HC M8 The PerfectPleat HC M8 filter is designed to consistently increase efficiency throughout the service life of the filter. The Per...

PerfectPleat Standard Capacity MERV 8 PerfectPleat SC M8 filters are designed to consistently increase efficiency throughout the service life of th...

We're pleased to announce the updated AAF Flanders PREpleat LPD (Low Pressure Drop) HC (High Capacity) filter, now featuring a MERV 10 rating, an u...

PerfectPleat ULTRA The PerfectPleat ULTRA filter is designed to consistently increase efficiency throughout the service life of the filter. The Per...

PREpleat AC Carbon Pleated Filters The World Leader in Clean Air Solutions PREpleat AC carbon pleated filters are designed to provide a fast and ef...

The PREpleat M13 pleated filter has a low initial resistance and supports achievement of LEED® credits by significantly improving Indoor Air Qualit...

The New Standard in Premium Pleated Filters Introducing the longest-lasting MERV 9 pleated panel filter on the market—the MEGApleat M9. Manufacture...

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

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

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

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

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

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

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 ...

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

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

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

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

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

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

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