Cim-Tek Viking 4F Bulk Filter Housing (500gpm) 40191 The Viking 4F (Flanged) filter housing is capable of filtering gasoline, ethanol blends up to E15, biodiesel blends up to B100, diesel fuel, ultra-low sulfur diesel (ULSD), and fuel oils. Industrial fluids such as lubrication oils, hydraulic oils, synthetic oils, transformer oils, many solvents, and thinners may be filtered. Perfect for bulk fueling racks and bulk fluid transfer. Requires 8 Viking Elements, Sold Seperatly Dimensions Features and Benefits Price: $6,850.69