Flash Harry One Shot Waterproofing in Grey, available in a 5-liter container with a 10-meter membrane, is designed for comprehensive and durable waterproofing. The kit includes a 5-liter container of waterproofing liquid and a 10-meter membrane to provide extensive coverage and protection. The grey finish offers a sleek, contemporary look while ensuring a strong, waterproof barrier. Ideal for large-scale applications such as roofs, terraces, and foundations, this product delivers reliable performance against moisture and water damage.