Designed for pools up to 15,000 gallons. Includes premium chemicals for extremely easy pool closing. Contains 2 lb. Winter Shock, 1 Qt. Winter Clear and 1 Qt. Anti-Stain Control Includes complete winterizing instructions Helps keep clean, covered pool water, clear and odor free Since 1973 Robelle has been making the best products to close your pool. Use the best pool closing kit designed with over 50 years of experience. For use in all swimming pools Includes the chemicals you need to close your pool, protect your pool this winter, and yield the most stress-free spring opening you’ve ever had