Universal Compatibility: Formulated to work in tandem with your pressure washer, and compatible with most consumer gas & electric power pressure washers The Karcher Promise - Cleaner. Quicker: Karcher's Multi-Purpose Pressure Washer Soap is perfect for cleaning concrete, pavement, driveways, patios, decks, sidewalks, RVs, cars, boats, homes, fencing, and more. Highly Concentrated: Make up to 20 gallons of detergent from a single gallon of Karcher's Multi-Purpose Concentrate Specially made for pressure washers Made in the USA