Karcher Car Shampoo can be used with all Karcher pressure washers whether your unit is designed with a Plug 'n' Clean system or a suction hose & filter. Karcher's detergents have huge advantages not just for cleaning around your home but for the environment too. No aggressive tensides or ingredients that are considered harmful such as mineral oil & palm oil are used. All tensides used in Karcher detergents are biodegradable & many ingredients are obtained from natural resources from coconuts to beeswax. The bottle your detergent comes in is made from 45% recycling material & is 100% recyclable.