This central heating corrosion inhibitor is a must-have for any home with a storage tank water heater. The activ brand ensures quality and longevity of your heating system. With a unit quantity of 10, this product is perfect for larger households or those in need of multiple heaters. Designed to prevent corrosion and scale buildup, this inhibitor is a crucial component for any heating system. It is compatible with a wide range of standard water heaters and is easy to instal. Don't let a faulty heating system ruin your home's comfort - invest in this high-quality corrosion inhibitor today.