Sea Klear Mighty Pods Weekly Pool Care - 2 Packages of 2 (4 Pods total) Two Packages - 2 pods in each pack [4 pods total] 1 Pod treats up to 15,000 gallons swimming pool water Naturally clarifies cloudy water & Controls phosphates Safe for your family: Clarifier ingredient comes from crab shells - not oil wells Makes filters quicker and easier to clean