Complete flushing kit includes a 1/6 HP submersible pump, two 6-foot rubber hoses, liquid descaling solution, a 3.5-gallon measuring bucket, and a maintenance log sheet. Non-toxic, eco friendly liquid descaler effectively dissolves limescale deposits while being safe for metals and drinkable water systems. Made in America. Submersible pump with thermal overload protection, strong bottom filter, and NPT hose adapter ensures efficient and reliable operation. Tear-resistant, leak-proof rubber hoses with color-coded hot/cold design ensure smooth water flow during the flushing process. 3.5-gallon measuring bucket with clear markings simplifies accurate preparation of the descaling solution. Maintenance log sheet included to track service dates, ensuring consistent annual or biannual maintenance for optimal water heater performance. Boosts energy efficiency, extends the life of your water heater, and prevents costly repairs with easy-to-use, DIY-friendly tools. Works with most all tankless water heaters such as Rinnai, Bosch, Noritz, Rheem, Takagi, Tempra, Navien, Ecosmart, Stiebel, Eccotemp, Atmor, Trutankless, Marey Power, and others. The DrainX Tankless Water Heater Flushing Kit provides everything you need for easy, DIY maintenance to keep your water heater running efficiently. This all-in-one kit includes a powerful 1/6 HP submersible pump with a strong bottom filter, two 6-foot color-coded rubber hoses for hot and cold water, and a 3.5-gallon clear measuring bucket for precise solution mixing. Also included is a replacement filter compatible with Rinnai tankless water heater systems to ensure reliable performance. Just add vinegar or your preferred descaler to prevent limescale buildup, improve efficiency, and extend the life of your tankless water heater. A maintenance log is included to help you track service history for worry-free upkeep."