First Choice Alkalinity Increaser 10 lb Pail$29.99 First Choice Alkalinity Increaser 10 lb Pail quantity Add to cart SKU: CH-FC-F08501004FC-0029099-1 Categories: Alkalinity Increaser, Balancers, Chemicals, First Choice, Water Treatment Description Description Raises total alkalinity in pools and spas. Maintaining proper alkalinity levels helps prevent pH First Choice Cal-Shock 25 lb Pail $149.99 Add to cart First Choice Cal Hypo Shock 100 lb Drum $499.99 Add to cart First Choice Metal Out 32 fl oz $29.99 Add to cart