Looking for a solution to seal those pesky leaks in your water system? FERNOX LS-X LEAK SEALER 50ML is just what you need. Its powerful chemical formula forms a tight seal to stop leaks and prevent future damage. Plus, it even helps to reduce limescale build-up and lower energy costs. Each 50ml bottle can treat a system of up to 10L, making it a cost-effective and efficient solution for your home.