ProTeam Winter Mix Kit, treats 15,000 gallon swimming pool - 20 lb

Our Winter Closing Crystals for prolonged protection when the pool is closed longer than it is open.

•   Simple, one-step product.

•   Helps lock in pH and alkalinity. Left un-locked, they can contribute to algae growth and  other undesirable issues

•   Sub-Zero Crystals help protect pool surfaces from staining and scaling.

•   Cold weather is tough on pool surfaces. Winter Blue helps extend their usefulness.

•   Treats up to 15,000 gallons in a single application.

•    Added water softeners give your pool a head-start on comfort in the Spring.