18x24x4 HVAC, Furnace, AC and Heat Pump Filters

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

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...

18x24x4 VariCel® 2+SC Filters The VariCel® 2+SC filter is engineered for superior performance, utilizing AAF’s exclusive Impress® Technology to pr...

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

The PREpleat M11 HC is 2 to 3 times more efficient at capturing small particles than standard MERV 8 pleated filters. The durable design and high-c...

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...

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

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...

The PREpleat M11 SC pleated panel filter enables a significant upgrade in collection efficiency over existing MERV 8 products. A 25–30% average eff...