The Zep 37624 Brushless Truck And Trailer Wash is a 1 gallon liquid cleaner specifically designed for cleaning trucks and trailers. It is a highly effective formula that removes grime, road film, and exhaust deposits, leaving your vehicle looking clean and shiny. With a light amber color and a base type of water, this wash is easy to use and comply with VOC standards. Made by Zep, a trusted brand in automotive cleaning, this truck and trailer wash is a must-have for any vehicle owner looking to keep their truck or trailer looking its best.