This Sentinel X100 Inhibitor is a must-have for your central heating system. With a capacity of 1 litre, it offers excellent protection against corrosion and extends the lifespan of your heating system. Made in the United Kingdom, this inhibitor is designed to work efficiently with all types of central heating systems. Whether you have a new installation or an existing system, this product is perfect for you.Don't let corrosion damage your heating system. This Sentinel X100 Inhibitor offers the perfect solution to protect it. It comes in a convenient 1-liter unit that is easy to use and install. Ideal for use in any home, it is a reliable and efficient way to ensure that your heating system stays in top condition for years to come. Order yours today!