The FME 40 is a medium
efficiency, self-supported extended surface, pleated filter to accommodate most
system requirements. The lofted, non-woven media composed of non-dyed natural
cotton and synthetic fibers provides 25-30% average efficiency and 90-93%
average arrestance. The FME 40 is effective as a stand-alone filter or prefilter.
UL Class 2.
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