CCH Endurance 3" Tablets, 25 lb.

Cal-Hypo 3" Endurance Chlorinating Tablet (68%). CCH® Endurance Tablets are non-stabilized, and do not contain cyanuric acid. Stabilized sanitizers like trichlor contain cyanuric acid. Cyanuric acid can help stabilize pH and will be measured in a pool water total alkalinity test, but carbonate alkalinity is needed to protect pool surfaces. Low carbonate alkalinity can lead to corrosion and plaster damage. The calcium in CCH® Endurance Tablets helps to protect the plaster, extending the life of the pool

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This item is classified as Hazardous and may not be able to ship by air. If air shipping is requested, additional charges may apply and you will be contacted with a shipping quote which must be approved prior to shipping.