The Ranger Oil Filter Crusher, No. RP-50FC, applies 25 tons of electric-hydraulic pressing power, flattening used oil filters to 20 percent of their original sizes while removing 95 percent of the residual oil. Filters up to 15-1/4" long and 6" in diameter are crushed in just 8 to 15 seconds, according to the company. The RP-50FC includes a remote electric foot switch and auto-locking safety door.