ELECTROSTATIC AIR FILTERS

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Our ELECTRA SILVER 8800 filter has a single piece, roll-formed steel frame with a durable and attractive finish. See the chart below for details on filter frame types and arrestance.
  • All standard size filters are undercut by 3/8" for both length and width
  • All filters have a 1/8" tolerance
  • Lifetime Warranty
  • Standard 1" Filter - $48.95
  • Standard 2" Filter - $59.98
  • Custom Size Filters also available – contact Sales@PermanentFilter.com
  • All custom size filters are cut to measurements given and non-returnable
  • There is a tolerance for all filters between 1/8"
                                                                                    
 
Our ELECTRA GOLD 9400 filter has a premium quality extruded aluminum, gold anodized frame with a durable and attractive finish. See the chart below for details on filter frame types and arrestance.
  • Gold filters only available in 1" thickness
  • All standard size filters are undercut by 3/8" for both length and width
  • All filters have a 1/8" tolerance
  • Standard 1" Filter - $53.95
  • Custom Size Filters also available – contact Sales@PermanentFilter.com
  • All custom size filters are cut to measurements given and non-returnable  
  • There is a tolerance for all filters between 1/8"
                                                                                           
 
FLEXIBLE FRAME filters are available for applications where a rigid frame cannot be used because the filter must be bent in order to install. Flexible frame filters have a 3/8" polyester layer and an expanded metal stiffener applied between 2 layers of polypropylene and a polypropylene webbing frame which is sewn around the edge. These 3/8" thick filters fit most 1" applications.
  • All standard size filters are undercut by 3/8" for both length and width
  • All filters have a 1/8" tolerance
  • Standard Flexible Filter - $57.78
  • All custom size filters are sized as ordered and non-returnable

                                                                                          

These EXTRA WIDE FILTERS make great permanent replacements for filters made by Aprilaire, SpaceGard, Honeywell, Trion, Lennox, Goodman, Bryant/Carrier, & Purolater.

  • Our 4", 5" and 6" thick silver filters are only available in 94% arrestance
  • All Extra Wide Filters are custom, enter exact length x width x thickness
  • All custom size filters are sized as ordered and non-returnable
  • All filters have a 1/8" tolerance
  • Custom Extra Wide Filter - $97.95

ORDER a 4", 5" or 6" WIDE FILTER

                                                                                                               
 
 
Gold 94
Silver 88
Flex 94
Flex 88
Filtration Efficiency
94%
88%
94%
88%
Dust Holding Capacity
165 grams
126 grams
165 grams
126 grams
Air Flow Resistance
0.12
0.08
0.12
0.08
Frame Quality
Excellent
Good
Flexible
Flexible
Frame Depth (Thickness) 1" 1/2", 1", 2" 5/8" 3/8"
UV Resistant
Yes
No
Yes
Yes
MERV Rating
8
6
8
6
Spec Sheet View View View View
  • Our Gold Frame filters are more durable and rigid than the Silver Frame filters.
  • All filters are UV protected, EXCEPT for our Silver Frames so if you have a UV purifier light installed in your air system, be sure to avoid the Silver 88%.
  • The 94% and 88% refer to the efficiency of the filter and resistance to airflow. The 94% filters are the most efficient (94%) while the 88% filters are less efficient (88%) but allow more airflow (they are less restrictive and less taxing on the your HVAC system).The 94% is recommended for all applications except in systems that have a reduced sized return opening.
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