20x20x4 Filters - MERV 8

New product

20x20x4 Multi-Pleat Multi-Pleat XL8™ Filter

Available in Standard Capacity or High Capacity.

Sold as a case of 6 filters.

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$10.00 per Filter

Data sheet

Dimensions - Actual (inches): 19.5x19.5x3.75
Dimensions - Nominal (inches): 20x20x4
Case Quantity: 6
Rated Air Flow @ 300 FPM: 840 Cubic Feet/Min
Media Area - Standard Capacity: 15.1 Sq Ft
Media Area - High Capacity: 18.4 Sq Ft
Rated Air Flow @ 500 FPM: 1400 Cubic Feet/Min
Rated Air Flow @ 625 FPM: 1740 Cubic Feet/Min
MERV Rating: 8
Initial Resistance @300 FPM (InWC): .09 (Standard Cap) .08 (High Cap)
Initial Resistance @500 FPM (InWC): .18 (Standard Cap) .16 (High Cap)
Initial Resistance @625 FPM (InWC): .25 (Standard Cap) .23 (High Cap)
Abbreviation Definitions: HC: High Capacity, SC: Standard Capcity, InCW: Inches of Water Column

More info

(Our 20x20x4 Filter is also available in a MERV 11)

20x20x4 Multi-Pleat XL8™ Filter

MERV 8 Extended Surface Pleated Panel Filters with Mechanical Media


  • Upgrade from standard pleated filters
  • MERV 8 and MERV-A 8 performance ratings
  • Mechanical MERV 8 media is not reliant on electrostatic charge for efficiency
  • Low resistance to airflow
  • High Dust Holding Capacity
  • Sturdy double-wall frame design
  • Moisture resistant beverage board frame
  • Standard and High Capacity models


Standard Capacity filters provide a combination of efficiency, economy, and excellent overall performance. Standard Capacity XL8 filters are an excellent choice in applications where filter change schedules are based on preventive maintenance schedules.

High Capacity fitlers offer 30% more media. High Capacity XL8-HC filters are similar in construction to the Standard Capacity but have the added advantage of approximately 30% more media. The additional media results in extended filter life, making the XL8-HC the ideal filter for use in filtration systems where filter change schedules are predicated on recommended final pressure drop readings.

More information on Koch MERV 8 Filters