Our pumps are epoxy sealed and pass the voltage withstand test in compliance with the UL standard. 100% inspection is fulfilled for Quality Control according to ISO. While working, they are incredibly quiet and efficient and energy-saving with high lift. Max Head: 2.11 ft (0.9m). Our pumps are easy to clean and no tools are required to install, uninstall, or disassemble. Volume Dimensions: L 2 in. W 1.75 in. H 1.75 in. The small pump body and motor use real copper core wires and sufficient epoxy resin so that it can guarantee a long life. can make a strong flow rate which is adjustable. Max flow 133 GPH - 500 L/H, 6W Power Consumption. This submersible pump is designed for use in ponds, fountains, waterfalls, hydroponic systems, irrigation systems, and water features. Fits 1/4" and 1/2" ID Tubing. Strong suction cups allow the pump to stick to any smooth flat surface vertically or horizontally