Features: vThe equipped RO white 1/4 inch OD tube is five meters. Plastic hanger can be applied to the thickest glass of 19mm. When the L bracket is installed reversely, the water level height will be 5-15cm, on the contrary, when the L bracket is installed normal, and the distance between the water surface and the edge of the cylinder will be adjusted in 15-25cm. The reverse installation of L bracket will be more difficult. vThe replenishment tank can be recognized as the water adding device installed at the bottom of the tank (After the seawater evaporates every day, the water in upper district will appear). When replenishing the water, the aquarium water adding device will take advantage of the atmospheric pressure or the water pressure to replenish water, and no additional water pump is needed. vIf the back filter cylinder cannot be used, there should be no space. Before using the fish tank water adding device, you have to check it to ensure security. The valve should not be opened too much as the heavy pressure will cause the tube lose control. Please choose the device carefully Package includes: vRetractable plastic rack*1 vRO water machine float valve*1 v8 meters 20ft white tube for RO water machine*1 v1/4 inch quick push to connector *4 Precautions vThe water replenisher is just an open pipe, and the water source need to be connected to the water pipe, to achieve this, a conversion head, RO machine and water replenishment bucket are needed.?EASY STORAGE?The aquarium water changer abandoned the crude benzene hose, and the aquarium water replenisher can be connected to 8 meters 20Ft white cube, weighs 200 grams, which is easier for adding water and storage. Floating ball is small in volume and will not occupy the space in the fish tank. ?FLOAT VALVE?The unique float valve: the adjustment shaft adopts engineering plastic instead of metal screw, and you don’t need to worry about corrosion. You can adjust the ideal angle by hands and no extra tool. Furthermore, the multi-purpose bracket can fix water replenisher firmly. The water level controller can work with water purifier and normal water bucket, a superior supply for both fish tanks and aquarium. ?VARIOUS INSTALLATION?The ATO system is easy to hang on to your aquarium sump. The unique double hanging device can be directly hung on aquariums or fish tanks. The updated water level adjustment device, which enjoys a larger rotation range, replaces the original bracket adjustment, and the aquarium water changer can be applied to water level range from 0.5 to 15 cm. ?WIDE APPLICATION?The aquarium water adding device can be used to replenish fresh water in fish tanks and improve fish living environment, creating a great deal of bubbles that your fish loves. The fish tank water changer features fully automatic start and stopping, no electricity is needed.Best Sellers Rank: See Top 100 in Pet Supplies. : B089WK238S. Manufacturer: MALIDA. Date First Available: June 9, 2020. Package Dimensions: 8.23 x 7.76 x 2.13 inches; 7.05 Ounces.