Check the listing for details. SpaGuard Chlorinating Concentrate 5 lbs. Condition: New. Listed at 69.99 USD. SpaGuard Chlorine Concentrate is the perfect solution for spa owners looking for a fast and easy way to sanitize their hot tub water. The quick-dissolving granular formula of this stabilized chlorinator ensures that it rapidly and completely dissolves, allowing you to disinfect your spa water quickly and efficiently. With its dual action as both a sanitizer and an oxidizer, SpaGuard Chlorine Concentrate eliminates the need for two separate products, making your spa maintenance routine even easier. Plus, you can add it directly to your spa water without any pre-dissolving required, saving you even more time. Keep your spa water clean and clear with SpaGuard Chlorine Concentrate. Product Benefits: Granular stabilized chlorinator Fast-acting Quick dissolving Acts as a sanitizer and an oxidizer; no need for two products May be added directly to spa, no pre-dissolving needed