4 x Wet & Forget: Mould, Algae, Lichen and Moss Removal & Killer (5L). Suitable for cleaning patios, tarmac, roofs, tennis courts and more. Kills and removes moss, algae, lichen and mould with no need of special equipment.Wet & Forget helps prevent the damage caused by the harsh scouring of scrubbing and water blasting. Unlike bleach based cleaners Wet & Forget has an unlimited shelf life. No special equipment just apply Wet & Forget. Easy to maintain, after the first application always reapply at the first sign of recontamination. This item is in the category "Garden & Patio\Landscaping & Garden Materials\Patio, Deck & Walkway\Other Paving & Decking Accessories". The seller is "mhaltd" and is located in this country: GB. This item can be shipped to United Kingdom.