Concentrated outdoor cleaner makes up to 12 litres of solution Removes mould, mildew and algae For use on most hard outdoor surfaces No scrubbing, no rinsing – simply apply and walk away Long lasting results Convenient handled 2.5 litre bottle Contains Benzalkonium ChlorideDoff® Super Concentrate Path, Patio & Decking Cleaner can be used to clean mould, mildew and algae from most hard outdoor surfaces including paths, tarmacs, patios, fencing and decking. This 2.5 litre bottle makes up to 12 litres of cleaning solution. No scrubbing is required simply apply the solution for long lasting results. Concentrated outdoor cleaner makes up to 12 litres of solution Removes mould, mildew and algae For use on most hard outdoor surfaces No scrubbing, no rinsing – simply apply and walk away Long lasting results Convenient handled 2.5 litre bottle Contains Benzalkonium Chloride