20x24x4 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 ...

Designed for high performance under both normal and difficult operating conditions, VariCel II filters are appropriate for general HVAC and applica...

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...

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

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

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...

Special Order. Contact customer support for product details if unsure of your part number. The PrecisionCell III is a lightweight and low-resistanc...