About this item Fast-acting & Quick-Dissolving: SpaGuard's Chlorinating Concentrate provides spa owners with the sanitizing power of chlorine in a quick-dissolving granular form, making application quick and easy. One-Step Sanitizer & Oxidizer: SpaGuard Chlorinating Concentrate is a simple to use granular chlorine for sanitization and super-chlorination or shock. Chlorinating Concentrate can be used in regular doses as a sanitize and a shock. Simplify Spa Care: SpaGuard's Chlorinating Concentrate provides spa owners with the sanitizing power of chlorine in a quick-dissolving granular form, making application quick and easy. Easy to Use: Simply add to spa water while the pump is running, and they dissolve completely to start disinfecting your spa. Chlorinating Concentrate is also pH neutral to ensure no affect on your chemically-balanced spa water. Tested and Proven Effective: SpaGuard products are known for delivering reliable results and making spa care less complex. SpaGuard carries an extensive line of spa solutions that match your unique needs. › See more product details