Features : 
• Descaling engine flush is designed to safely and quickly remove scale,
  calcium deposits, corrosion, salt and carbon buildup in your engine's cooling and wet exhaust systems.
• Removes scale and deposits from all marine engines
• Will not damage engine seals, gaskets or rubber impellers.
• Removes scale and deposits from all marine engines
• Size: 1 Gallon (3.78 Ltr)