• Powdered Coil Cleaner
• Removes mineral and scale build-up in heating coils
• Restores heating coils back to peak performance
• Mix ScaleMaster per instructions
• Circulate thru coil for up to 2 to 3 hours to remove lime and scale build-up
• Can be metered into water supply tank at 1/4 to 1/3 oz. per gallon.