Complete tankless water heater flush kit with step-by-step instructions and quick connection to isolation valves using the included 6-foot hoses. Includes a 5-gallon bucket with lid, 1/6 HP submersible pump, elevated pump grate, 2 PVC-coated 6-foot hoses, 4 individual 1-quart bottles of descaler solution, and a maintenance reminder tag. Works with most tankless water heaters, including Rinnai, Bosch, Noritz, Rheem, Takagi, Navien, Ecosmart, Stiebel, Eccotemp, Marey, and more. Descaler helps remove scale buildup to support consistent performance and extend service life, and it is designed for potable water systems. 4 individual quarts are ideal for repeat maintenance. Use only what you need for the flush and keep the remaining bottles sealed for future cleanings. This tankless water heater flush kit includes what you need for routine maintenance and descaling. It comes with clear step-by-step instructions and connects to tankless isolation valves using the included 6-foot hoses. The kit includes a 5-gallon bucket with lid, a 1/6 HP submersible pump, an elevated pump grate, and four individual 1-quart bottles of descaler solution, so you can use what you need now and keep the rest sealed for future cleanings. A maintenance reminder tag is included to help you stay on schedule.