Binds with inorganic phosphate, making the phosphate unavailable as a nutrient for algae -- preventing algae bloom from high phosphate level. One treatment removes 1.5 ppm phosphate. Safe for pets, birds, and other wildlife as well as all aquatic life. Treats over 1800 gallons per 16 oz.

16 oz. Phos-Out
Suggested Retail Price: $22.16
$13.49

64 oz. Phos-Out
Suggested Retail Price: $66.16
$39.99