Clarifier with natural properties clarifies pool and spa water. Helps control trace metals and prevents oil and scum lines. Reduces filter cleanings, backwashes, and replacements. Maximizes filter efficiency and reduces the frequency of cleaning. Compatible with all sanitizing systems. Environmentally safe, nontoxic, biodegradable, and totally organic – excellent for ponds. 1 Qt. treats up to 160,000 Gal.