Polypropylene Filter Housings . Length 419mm 813mm 228mm 381mm Surface Area 2.0ft2 4.4ft2 0.5ft2 1.0ft2 Max Flow 340 L/min 757 L/Min 94 L/Min 170 L/Min Suitable for any standard BFL-1 BFL-2 BFL-3 BFL-4 type housing Material PE-Polyester, PO-Polypropylene, NMO-Monof ilament Nylon Micron Rating 5,10,25,35,50,75,100,200,250,300,400,500,600,800