Spear & Jackson Spray and Leave 5L Ready to use with Long Hose Trigger

Spear & Jackson Spray and Leave Premium UK Manufactured Brand - Removes algae, green mould, and lichen Designed for use on patios, roofs, fencing, UPVC windows, sheds, caravans, boats, decking and driveways Treated area can be used as soon as it has dried Helps prevent re-growth see results that last for months. The formula is designed to work with the outdoor elements, including wind and rain, to gradually wash away the contamination over a number of months - and can continue working for up to a year, depending on the extent of contamination.