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
Flex Filters are 3/8" thick
All custom size filters are sized as ordered and non-returnable
Dust Holding Capacity
Air Flow Resistance
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