Mosgo Green Remover is ideal for use on concrete, tarmac, walls, patios and driveways. This is a fast-acting moss killer. For best results, use in dry weather and results should be seen within 3-4 days. No washing or scrubbing is needed. Treats an area up to 62.5m squared. Comply with the instructions for use to avoid risks to human health and the environment. Size: 5L.