BUS WASH is a Hi-pH, biodegradable, friction-less detergent for use in automatic rollover, presoak arch, prep-guns and pressure washers. A high foaming blend of multiple detergents that break through road film and carbon, leaving paint and glass clean and shining. Works great as a Pre-soak and is very popular in the Frac industry for cleaning equipment. Local Purchase Only, Call for Bulk pricing.