Description: Cat Pump Oil (Part # 112056) is a special blend of multi-viscosity, petroleum-based pump oil designed to enhance the performance and increase the lifespan of pressure washing equipment. The lubricant is available in a 21 ounce bottle and features an anti-wear, non-detergent formula with rust inhibitors for maximum protection of critical pump parts. Volume: 21 ounces. May be used on pressure washers using Comet, General, AR or Cat pumps. Made in the USA.