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FREE SHIPPING | EVERY SIZE AVAILABLE | COMMERCIAL & RESIDENTIAL
FREE SHIPPING | EVERY SIZE AVAILABLE | COMMERCIAL & RESIDENTIAL
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VariCel® High Efficiency Box Filters

Overview

VariCel® filters are high-capacity, extended surface, supported box filters designed for a wide range of applications. Their rigid construction and supported pleat media ensure durability, even in harsh operating environments with variable air volume, turbulent airflow, high humidity, and exposure to moisture. These filters are particularly suited for seacoast installations and high-dust environments.

Key Features

  • Available in MERV 15, MERV 14, MERV 13, and MERV 11 efficiencies
  • Engineered for excellent performance in challenging conditions
  • MERV 14 available with antimicrobial treatment
  • MERV 15, MERV 14, and MERV 13 meet LEED® Project Certification efficiency requirements
  • UL Classified for reliable performance

Dual-Density Media for Cost Savings

The dual-density media design, with coarser fibers on the air entering side and finer fibers on the air leaving side, maximizes dust-holding capacity, extending filter life and reducing operating costs. VariCel filters are water-resistant, making them ideal for humid conditions.

Designed to Improve Indoor Air Quality (IAQ)

VariCel filters, particularly in MERV 14 and MERV 15 ratings, effectively capture fine particles, including bacteria and viruses, improving indoor air quality. The MERV 14 version is also available with antimicrobial-treated media to preserve filter integrity throughout its lifespan.

Product Options

  • Available in 12" and 6" depths for different air flow needs
  • Optional faceguards made of galvanized or aluminized steel
  • Factory-installed gaskets for easy installation
  • Vinyl-coated separators for corrosive environments

Performance Data

  • Operating temperature limits: up to 900°F, depending on the filter type
  • Recommended final resistance: 1.5" w.g. (1.2" w.g. for HT filters)
  • Tested in accordance with ASHRAE Standard 52.2

Filters

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16x25x6 AAF Flanders VariCel Single Header MERV 13 | 331-765-184

16x25x6 AAF Flanders VariCel Single Header MERV 13 | 331-765-184

$ 350.36 - $ 350.36
$ 350.36
$ 350.36 - $ 350.36
$ 350.36

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

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$ 350.36 - $ 350.36
$ 350.36
$ 350.36 - $ 350.36
$ 350.36
16x25x6 AAF Flanders VariCel Single Header MERV 14 | 331-946-184 (2 Pack)

16x25x6 AAF Flanders VariCel Single Header MERV 14 | 331-946-184 (2 Pack)

$ 249.96 - $ 249.96
$ 249.96
$ 249.96 - $ 249.96
$ 249.96

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 249.96 - $ 249.96
$ 249.96
$ 249.96 - $ 249.96
$ 249.96
18x24x12 AAF Flanders VariCel Single Header MERV 11 | 331-953-152

18x24x12 AAF Flanders VariCel Single Header MERV 11 | 331-953-152

$ 249.44 - $ 249.44
$ 249.44
$ 249.44 - $ 249.44
$ 249.44

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 249.44 - $ 249.44
$ 249.44
$ 249.44 - $ 249.44
$ 249.44
18x24x12 AAF Flanders VariCel Single Header MERV 13 | 331-765-152

18x24x12 AAF Flanders VariCel Single Header MERV 13 | 331-765-152

$ 251.35 - $ 251.35
$ 251.35
$ 251.35 - $ 251.35
$ 251.35

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 251.35 - $ 251.35
$ 251.35
$ 251.35 - $ 251.35
$ 251.35
18x24x12 AAF Flanders VariCel Single Header MERV 14 | 331-946-152

18x24x12 AAF Flanders VariCel Single Header MERV 14 | 331-946-152

$ 257.06 - $ 257.06
$ 257.06
$ 257.06 - $ 257.06
$ 257.06

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 257.06 - $ 257.06
$ 257.06
$ 257.06 - $ 257.06
$ 257.06

18x24x4 VariCel 2+ Standard Capacity No Header MERV 14 3102036-804 (4 Filters)

$ 502.99 - $ 502.99
$ 502.99
$ 502.99 - $ 502.99
$ 502.99

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

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$ 502.99 - $ 502.99
$ 502.99
$ 502.99 - $ 502.99
$ 502.99
18x24x6 AAF Flanders VariCel Single Header MERV 11 | 331-953-151

18x24x6 AAF Flanders VariCel Single Header MERV 11 | 331-953-151

$ 359.10 - $ 359.10
$ 359.10
$ 359.10 - $ 359.10
$ 359.10

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

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$ 359.10 - $ 359.10
$ 359.10
$ 359.10 - $ 359.10
$ 359.10
18x24x6 AAF Flanders VariCel Single Header MERV 13 | 331-765-151 (2 Pack)

18x24x6 AAF Flanders VariCel Single Header MERV 13 | 331-765-151 (2 Pack)

$ 288.82 - $ 288.82
$ 288.82
$ 288.82 - $ 288.82
$ 288.82

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 288.82 - $ 288.82
$ 288.82
$ 288.82 - $ 288.82
$ 288.82
18x24x6 AAF Flanders VariCel Single Header MERV 14 | 331-946-151 (2 Pack)

18x24x6 AAF Flanders VariCel Single Header MERV 14 | 331-946-151 (2 Pack)

$ 257.19 - $ 257.19
$ 257.19
$ 257.19 - $ 257.19
$ 257.19

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 257.19 - $ 257.19
$ 257.19
$ 257.19 - $ 257.19
$ 257.19
20x20x12 AAF Flanders VariCel Single Header MERV 11 | 331-953-136

20x20x12 AAF Flanders VariCel Single Header MERV 11 | 331-953-136

$ 221.97 - $ 221.97
$ 221.97
$ 221.97 - $ 221.97
$ 221.97

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 221.97 - $ 221.97
$ 221.97
$ 221.97 - $ 221.97
$ 221.97
20x20x12 AAF Flanders VariCel Single Header MERV 13 | 331-765-136

20x20x12 AAF Flanders VariCel Single Header MERV 13 | 331-765-136

$ 240.25 - $ 240.25
$ 240.25
$ 240.25 - $ 240.25
$ 240.25

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 240.25 - $ 240.25
$ 240.25
$ 240.25 - $ 240.25
$ 240.25
20x20x12 AAF Flanders VariCel Single Header MERV 14 | 331-946-136

20x20x12 AAF Flanders VariCel Single Header MERV 14 | 331-946-136

$ 237.67 - $ 237.67
$ 237.67
$ 237.67 - $ 237.67
$ 237.67

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 237.67 - $ 237.67
$ 237.67
$ 237.67 - $ 237.67
$ 237.67
20x20x6 AAF Flanders VariCel Single Header MERV 11 | 331-953-135 (2 Pack)

20x20x6 AAF Flanders VariCel Single Header MERV 11 | 331-953-135 (2 Pack)

$ 246.91 - $ 246.91
$ 246.91
$ 246.91 - $ 246.91
$ 246.91

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 246.91 - $ 246.91
$ 246.91
$ 246.91 - $ 246.91
$ 246.91
20X20X6 AAF Flanders VariCel Single Header MERV 13 | 331-765-135

20X20X6 AAF Flanders VariCel Single Header MERV 13 | 331-765-135

$ 344.90 - $ 344.90
$ 344.90
$ 344.90 - $ 344.90
$ 344.90

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 344.90 - $ 344.90
$ 344.90
$ 344.90 - $ 344.90
$ 344.90
20x20x6 AAF Flanders VariCel Single Header MERV 14 | 331-946-135

20x20x6 AAF Flanders VariCel Single Header MERV 14 | 331-946-135

$ 204.16 - $ 204.16
$ 204.16
$ 204.16 - $ 204.16
$ 204.16

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 204.16 - $ 204.16
$ 204.16
$ 204.16 - $ 204.16
$ 204.16

20x24x12 AAF Flanders VariCel Double Header MERV 13 | 331-300-109

$ 274.99 - $ 274.99
$ 274.99
$ 274.99 - $ 274.99
$ 274.99

20x24x12 VariCel® High Efficiency MERV 13 Double Header Filter VariCel® filters are engineered for high-performance air filtration in a variety of...

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$ 274.99 - $ 274.99
$ 274.99
$ 274.99 - $ 274.99
$ 274.99
20x24x12 AAF Flanders VariCel Single Header MERV 11 | 331-953-189

20x24x12 AAF Flanders VariCel Single Header MERV 11 | 331-953-189

$ 253.03 - $ 253.03
$ 253.03
$ 253.03 - $ 253.03
$ 253.03

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 253.03 - $ 253.03
$ 253.03
$ 253.03 - $ 253.03
$ 253.03
20x24x12 AAF Flanders VariCel Single Header MERV 13 | 331-765-189

20x24x12 AAF Flanders VariCel Single Header MERV 13 | 331-765-189

$ 252.80 - $ 252.80
$ 252.80
$ 252.80 - $ 252.80
$ 252.80

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 252.80 - $ 252.80
$ 252.80
$ 252.80 - $ 252.80
$ 252.80
20x24x12 AAF Flanders VariCel Single Header MERV 14 | 331-946-189

20x24x12 AAF Flanders VariCel Single Header MERV 14 | 331-946-189

$ 248.99 - $ 248.99
$ 248.99
$ 248.99 - $ 248.99
$ 248.99

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 248.99 - $ 248.99
$ 248.99
$ 248.99 - $ 248.99
$ 248.99
20x24x12 AAF Flanders VariCel Single Header w/ Gadsket MERV 11 | 331-698-009 1512698-009
Sold out / Discontinued

20x24x12 AAF Flanders VariCel Single Header w/ Gasket MERV 11 | 331-698-009 1512698-009

$ 0.00 - $ 0.00
$ 0.00
$ 0.00 - $ 0.00
$ 0.00

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 0.00 - $ 0.00
$ 0.00
$ 0.00 - $ 0.00
$ 0.00
Sold out / Discontinued

20x24x4 AAF Flanders VariCel II MERV 14 Filter 332-510-006 (4 Filters)

$ 519.99 - $ 519.99
$ 519.99
$ 519.99 - $ 519.99
$ 519.99

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

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$ 519.99 - $ 519.99
$ 519.99
$ 519.99 - $ 519.99
$ 519.99
20x24x6 AAF Flanders VariCel Single Header MERV 11 | 331-953-188 (2 Pack)

20x24x6 AAF Flanders VariCel Single Header MERV 11 | 331-953-188 (2 Pack)

$ 255.50 - $ 255.50
$ 255.50
$ 255.50 - $ 255.50
$ 255.50

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 255.50 - $ 255.50
$ 255.50
$ 255.50 - $ 255.50
$ 255.50
20x24x6 AAF Flanders VariCel Single Header MERV 14 | 331-946-188

20x24x6 AAF Flanders VariCel Single Header MERV 14 | 331-946-188

$ 213.11 - $ 213.11
$ 213.11
$ 213.11 - $ 213.11
$ 213.11

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 213.11 - $ 213.11
$ 213.11
$ 213.11 - $ 213.11
$ 213.11
20x25x12 AAF Flanders VariCel Single Header MERV 11 | 331-953-158

20x25x12 AAF Flanders VariCel Single Header MERV 11 | 331-953-158

$ 257.99 - $ 257.99
$ 257.99
$ 257.99 - $ 257.99
$ 257.99

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

View full details
$ 257.99 - $ 257.99
$ 257.99
$ 257.99 - $ 257.99
$ 257.99