Maintain, Chlorine Winter Chemical Closing Kit for 30,000 Gallon Pools. This is a great and inexpensive pool winterizing kit that includes a basic winterizer to help maintain the chlorine residual in your pool all winter. The sequestering compound helps remove excess minerals that run the risk of staining the surface over the winter.

Kit Includes

• 3 lbs. Di-Chlor Shock
• 3 lbs. Dry Granular Winterizer
• 3 lbs. Sequestering Compound