Robelle Swimming Pool Triple-Action Winter Kit for Pools Up to 40,000 gal.

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,The Summer and Winter Multi-Purpose A aecide will prevent a ae growth during the winter months,The Winter Stain & Scale Control will prevent stain and scale while the pool is closed,Oxidizing Shock and Swim is the highest strength non-chlorine oxidizing pool shock - effective at eliminating organic contaminants,The 3540 winter kit has a 4 lb Oxidizing Shock &Swim