United Chemicals YT2-C12 Yellow Treat² 2 lb Mustard Algicide
United Chemicals YT2-C12 Yellow Treat² 2 lb Mustard Algicide makes killing mustard algae fast and easy. Just add 5 ounces per 10,000 gallons, brush, and shock. Then wake up the next day to an algae-free pool that still has a chlorine reading.
