The Karcher 3-in-1 stone cleaner has a unique 3-in-1 formula for outstanding cleaning performance This stone cleaning detergent has an active dirt remover a protective formula to keep stone cleaner for longer and wind and weather protection The Karcher stone cleaner offers outstanding cleaning efficiency care and protection in one step This product can be used on stone patios walls and facades all around the house and garden The Plug ’n’ Clean system is the easiest and quickest way to apply detergent using a Karcher pressure washer Size 1 Litre