Patio Magic! Concentrate 2.5L - Algae & Lichen Killer for Paths, Driveways. This biodegradable cleaner is suitable to treat your patios, fencing, driveways and all round hard surfaces. Liquid Concentrate Mould, Algae and Moss Killer can be used on hard surfaces indoor and outdoor, and can be used as a pre-paint fungicidal wash.
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