THE 3M 100 SERIES HIGH PERFORMANCE LIQUID FILTER BAG IS CONSTRUCTED USING POLYPROPYLENE MICROFIBERS THAT ALLOW VERY FINE PARTICLE CAPTURE AT HIGH EFFICIENCIES. WITH OVER 90% PARTICLE REMOVAL EFFICIENCY AT THEIR SUGGESTED APPLICATION RATING, THE SERIES 100 FILTER BAGS OFFER AN EXCELLENT BALANCE OF HIGH EFFICIENCY WITH VERY LOW INITIAL PRESSURE DROP AND AN EFFECTIVE ALTERNATIVE TO FILTER CARTRIDGES.