Weil-McLain Sentinel X500, Inhibited Antifreeze (5 Gal.)

Ideal for properties vulnerable to sub-zero temperatures, Sentinel X500 Inhibited Antifreeze provides protection against limescale, corrosion and freezing. It protects all system metals against corrosion using the same unique blend of inhibitors as Sentinel X100 Inhibitor, but has the added benefit of protecting system water against freezing when temperatures are low. Key Features Prevents system water from freezing Enhanced limescale and corrosion protection Protects all system metals against corrosion Ensures optimum boiler efficiency Prevents boiler noise Prevents pin-holing Helps prevent the formation of hydrogen gas