Gunk SC3-4PK Super Concentrate Degreaser - 1 Gallon, (Case of 4) GUNK is a local family owned company based out of Charlotte, NC. For more than 75 years, GUNK products, developed by the people who use them, has earned the trust of hard-working tradesment and the active DIYer through consistent, superior performance and a commitment to innovation. Degreaser for engines, machines, metal parts, floors Economical concentrated cleaner helps dissolve grease Dilutes with kerosene and other similar petroleum solvents