56% Available Chlorine
GLB Granular Chlorine is an effective and easy way to sanitize your pool. This product features a fast dissolving formula. Many experts recommend daily chlorination. Granular Chlorine is stabilized against the sun's UV rays which break down chlorine. Stabilized chlorine means less sanitizer consumption. A double dose of Granular Chlorine can be used as a shock treatment. This product does not contain calcium.