Quickly Flush Flow Passages: Use This Descaler Solution To Rapidly Improve Efficiency And Open Flow Passages Of Heaters And Other Tankless Heat Exchangers. Multipurpose Cleaning Supplies, Flushes Out Water Scale, Lime, Tarnishing, And Other Mineral Deposits. | | Effective Solution But Also Very Safe: Qwikdescaler Descaler For Tankless Water Heater Is Not Only Extremely Effective At Flushing Out The Unwanted Buildup In Your Unit, But ItS Very Also Safe. Safe To Handle And Gives Off Zero Vocs. | | ItS Easy To Tell When You Need To Add More: ThereS No Guesswork With The Qwikdescaler+ Tankless Water Heater Descaler. If More Descaling Solution Is Needed, It Will Turn From Red To Yellow, So YouLl Get Visual Confirmation To Add More. | | Extend Life Of Your Unit Reduce Costs: Flushing Your Tankless Water Heater At Least Once A Year Is A Great Way To Help Extend Its Life. This Water Heater Descaling Solution Will Eliminate Buildup That Will Erode The Walls And Increase Ener.