ProKleen Patio Cleaner Organic Algae Mould Killer Remover Decking Paving 1 x 5L

It can be used to deeply clean patio flags, decking, tarmac, glass, plastic, slate, felt roofs and walls – whether they are painted or not. Mix 1-part Organic Path and Patio Cleaner with 3 parts water in a pump sprayer or watering can.