2 REPLACEMENT FANTOM LIGHTENING HEPA FILTERS THIS HEPA FILTER FITS FANTOM CANISTERS CALLING FOR #75091 APPROX. DIMENSIONS: Rectangular Shape, 5 1/2 x 5 1/4 x 2 H.E.P.A. FILTERS 100% OF ANIMAL DANDER, DUST MITES, MOST BACTERIA, POLLENS SUCH AS RAG WEED, GRASSES AND PLANT SPORES, AND FILTER 99.97% OF DUST AT .3 MICRONS. MOST OF TODAY'S CURRENT VACUUMS REQUIRE THESE HEPA FILTERS TO WORK EFFICIENTLY. THESE ARE THE HIGHEST QUALITY REPLACEMENT HEPA FILTERS AVAILABLE. THE PRICE WE ARE OFFERING THESE TWO FILTERS FOR, IS COMPARABLE TO THE COST OF ONE FILTER, IN MANY STORES.