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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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"