Permatron Model HFA ® MERV 6 Filter - 1/4", 1", or 2" Thick - Washable Electrostatic
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Product details
| Management number | 232307385 | Release Date | 2026/06/21 | List Price | US$17.70 | Model Number | 232307385 | ||
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Model HFA ® Washable Electrostatic Air Filters
All filters undersized by 1/2" on the length and width as is standard for filter sizing, unless noted as exact in the dropdown menu. Please measure your current filter. 1" thick filters are up to 1/8" undercut on thickness, 2" filters are up to 1/4" undercut on thickness, 1/4" thick filters are exact thickness.
A note about washable filter frame thickness:
A thicker frame on a washable filter does not contain more media nor is the media doubled up, pleated, or thicker in any way. The advertised efficiency and air flow remains the same throughout all thicknesses of washable filters in each of their respective LxW dimensions. In filtration, efficiency is the particle size a filter will capture. The frames are available in many sizes to allow users to install the filter into varying widths of tracks, slots, grilles, etc. This eliminates the need for modification of the track/slot/grille/etc. when switching from one type of filter to another, i.e. switching from a 2" thick pleated filter to a washable filter. All washable filters should be washed monthly or as needed; so they are made with enough media to work as designed and allow for proper dust holding capacity until the monthly/as needed wash is required.
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