Description
Description
Primary high capacity cartridge filter with 2 ply polyester prefilter, plus top cover fitting. Minimum efficiency of 96.5% using SAE fine test dust. Prefilter provides 30, 35% efficiency based on ASHRAE 52 Test Method. For use with SP-981-2A or SP-981-2B portable systems. Filter & Filter Fittings for the Extract-All® Air Cleaner Fume Extractor S-981-2B and SP-981-2B: Primary high capacity cartridge filter (Minimum efficiency of 96.5% using SAE fine test dust) with 2 ply polyester prefilter (30%, 35% efficiency based on ASHRAE 52 Test Method.), plus top cover fitting.
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