( x2 ) Algon Organic Path, Patio & Decking Cleaner 2.5L

Amazon

Helps restore the natural colour of virtually any outdoor surface the organic way Simply apply and walk away Please note that the image is for illustration purposes only. We receive fresh weekly delivery of stock and in some cases, the actual item sent may differ due to manufacturer rebranding.

Euroffice

Algon 2.5 Litres Concentrate. With Algon, simply apply and leave. A few days later, the surface will look cleaner without scrubbing or rinsing. It's non-toxic too, so it's safe for pets. Full instructions are on the bottle..