KELARO Tankless Water Heater Flushing Kit 850009354099

Keep your tankless water heater running efficiently and last longer with a complete DIY descaling kit. Mineral scale, lime, and calcium buildup restrict flow, reduce heat transfer, and can trigger error codes or premature failure. This kit circulates a vinegar solution through the heat exchanger so you can dissolve deposits in about 45–60 minutes without calling a technician.

The 1/8 HP submersible utility pump provides steady circulation through the closed loop. Color-coded 6-foot hoses connect quickly to the service ports on your isolation valves, so setup is straightforward and mix-ups between hot and cold lines are less likely. Everything stores in the 3.5-gallon bucket with a flexible EZ-open peel-off lid that’s easier to remove than a standard paint-bucket lid. Just add 2–3 gallons of white vinegar (not included), follow the printed instructions, and flush. Regular use helps restore flow, improve efficiency, and extend the life of gas or electric tankless units.

Dimensions & specs

• Packaged kit (in bucket): 12″ W × 12″ H (approx. 13″ depth on some listings)
• Bucket capacity: 3.5 gallons
• Hose length: 6 ft (color-coded)
• Pump: 1/8 HP corded electric utility pump
• Item weight: approx. 11.8 lb
• Model (vinegar version): KTWHFK-V-FBM

Compatibility Works with most tankless water heaters that have isolation/service valves (typically 3/4″):

Rheem, Bosch, Noritz, Rinnai, Takagi, Navien, Stiebel Eltron, Atmor, EcoSmart, Eccotemp, Marey Power, Tempra, Trutankless, and many other gas or electric models.

Requires existing isolation valves with service ports. Isolation valves are not included in the basic vinegar kit. Always confirm hose-thread size and follow your water heater manufacturer’s flushing instructions and recommended cleaner.