Zephyr Filtration Z18203-M11 | Our#: 199226

18x20x3 MERV 11 Return Air Grille Filter, 2-Pack

Zephyr Filtration Z18203-M11 | Our#: 199226

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18x20x3 MERV 11 Return Air Grille Filter, 2-Pack
For use in return-air filter frame assemblies.
  • 3" depth fits in all return grilles, ceiling or wall mount
  • Increased pleat count provides same amount of media as 5" design
  • Foam gasket peripheral header prevents dust bypass

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Product Details

18x20x3 MERV 11 Return Air Grille Filter, 2-Pack 

This specialty filter is designed for use in return grille applications. Many homes have filter grilles, located at  the return air openings, that accommodate a one-inch filter.  Because of the one-inch limitation homeowners are limited as to their choice of filters, without retrofitting their systems.  A one-inch filter by nature has low surface area and needs to be replaced often.  Higher efficiency one-inch filters load with dirt quickly and can restrict airflow. 

This 3" return grille filter replaces the 1" filter without any retrofitting.  A self-sealing foam gasket surrounds the filter on the upstream size and makes a tight seal with the grille surface, eliminating air bypass.

FEATURES:

  • Designed to fit into 1" return air filter grilles and replace standard 1" filters
  • Self sealing flexible gasket around upstream edge of filter eliminates air bypass
  • MERV 11 efficiency rating - captures allergens like dust, mold spores, pet dander, dust mite debris and other airborne particulates
  • Superior performance and service life over 1" filters
  • Outside dimension including gasket - actual size 18" X 20" X 3"
  • Inside dimension - actual size 16 3/8" X 18 3/8" X 3"

Replaces These Filters:

Zephyr Filtration:
18x20x3 MERV 11