Mega Maintain, Stain & Scale Control is a powerful sequestering agent with advanced chemistry to keep more metals suspended in the water longer. Prevents staining on pool surfaces and water discoloration. Controls metals like iron, copper, and manganese. Controls calcium, which prevents scale. Best when paired with CuLator Metal Eliminator.

• Sequesters stain-causing metals for up to 1 month or longer
• Treats 20,000 gallons
• Prevents staining on pool surfaces–even dark swimming pools
• Prevents calcium scale on pool surfaces
• Works in fresh or salt water
• No phosphates
• Non-toxic
• Made in USA