Cutrine Plus Algaecide 1 Gal
Product Review (submitted on March 27, 2013):
Was shipped promptly. Am using it to supplement chlorination in an inground swimming pool. It keeps the algae under control during the extreme hot periods when chlorination no longer is effective. Works better than the dilute products sold by the pool suppliers and only needs a few ounces for a 40,000 gallon pool every few weeks.