Rapidly eliminate black spots, dirt, grime, mould, and algae with Jarder Black Spot Remover. Suitable for patios, block paving, concrete, and more, this powerful formula gets to work within hours, lifting tough stains to restore a like-new finish. The high-strength, ready-to-use liquid is ideal for stone, sandstone, block paving, concrete flags, and bricks. One 5L bottle covers approximately 40m2, making it an efficient solution for maintaining your outdoor spaces. For maximum effect, leave the solution on for as long as possible. Made in the UK with a 6-month guarantee. Key Features: - Powerfully removes tough dirt, grime, black spots, and lichen - Effectively eliminates mould and algae - Suitable for a wide range of surfaces including stone, concrete, and brick - High strength, ready-to-use formula - Covers up to 40m2 Product Summary: Jarder Black Spot Remover, Patio Cleaner, Block Paving Cleaner, Concrete Cleaner, Mould Remover, Algae Remover, 5L, CL-JBSR-5L, Outdoor Cleaning, UK Made.