BENEFITS: Provides all the necessary chemicals and tools to successfully open your pool for the swimming season and to close it at the end USE: Follow instruction for application of each included product COMPATIBILITY: For treating up to 20,000 gallons of water; Fresh and saltwater systems FEATURES: Prevents stain and scale; Kills bacteria; Clarifies; Shocks; Prevents algae; Made in USA INCLUDED IN KIT: Two 1 lb. bags of HTH Ultimate Shock Treatment; One 12 oz. bottle of HTH Algae Guard Granules; One 1.25 lb. bottle of HTH Metal & Stain Defense Granules; On pack of 10 HTH Multi-purpose 6-Way Test Strips