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An ion exchange resin designed to actively trap phosphate, nitrite and nitrate. A chemical filtration media that is most effective when place as the last stage of filtration. Creates a crystal clear water garden. Greatly reduces hands-on pond maintenance. Safe for fish and plants. Treats up to 5283 u.s. gallons for up to 3 months.Size is 5288 Gallon. UPC Code = 015561205719
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