the flusher can lift the sentiment at the bottom of the water heater and the anode rod absorbs the action caused by hot water. Perfect RV solution for prolong water heater tank life and save your money and time! Extends the life of a water heater by attracting in the water. The anode rod absorbs the action acused by hot water and prolongs the life of your water heater tank. Made using high-quality magnesium-material. magnesium-rod oxidizing substances and all the contaminants in the water towards itself by electrolys, preventing the water tank from rusting in the metal water tank, ensuring your RV water heater lasting use. the flusher comes with a 1/2inch quick connect adapter and a 3/4inch garden hose adapter, which can directly connect to a garden hose . Colour:silver+black Material:metal+plastic type: A Package Contents: 1 x RV Water Heater Tank Flusher 2 x Anode Rod 1 x Tape (random colors, 't accept the specified color) 1 x Hex Wrench Socket Removal Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.