Environmentally friendly, the OFC7 is virtually maintenance-free. Manufactured in the USA, the OFC7 provides 17.5 tons of crushing force, reducing an oil filter’s size by up to 80%. Efficient and environmentally-safe, the OFC7 crushes up to 4 regular filters, or a single tall filter (up to 12″), each cycle of less than a minute. The OFC7 removes up to 98% of the residual oil, with extracted oil drained through an outlet for easy collection. The OFC7 is 100% air operated, using 90-120 psi standard shop air.