This unique algaecide is formulated specifically for pool closing in the winter. One easy treatment is all it takes to kill and prevent algae from growing for up to three months, making for an easy Spring opening. Your pool water will be as sparkling clear in the spring as when you closed it in the fall.
Our Winter Algaecide also helps other winter chemicals work more effectively over a wider range of pH levels, which is very important during the winter months.
- 1 Quart-sized bottle treats up to 20,000 gallons
- Winter Algaecide is compatible with our Winter Closing Chemical Kits