EASY TO USE: This self-priming borehole pump is designed to work with corded or cordless drills and fits most electric drills. It converts virtually any drill into a high-capacity pump capable of emptying sinks, aquariums, pool skimmers, and much more. QUIET DESIGN AND RELIABLE MOTOR: The durable motor operates quietly, providing a noise-free environment. It can raise the water column up to 3 m (11.8 ft). The lifting height refers to the maximum height the water can rise when the water pipe is connected to the nozzle (ensure the joint is well sealed). HIGH FLOW PERFORMANCE: Offers stable performance and high efficiency with easy installation. The mini pump is liquid-tight, enhancing safety. Designed with a compact size and lightweight build, it is convenient to use. ADJUSTABLE WATER FLOW: Suitable for use with an electric drill with a power of 350 W or more. Different drill power levels correspond to different water flow rates. COMPACT SIZE: 124 mm x 109 mm x 79 mm (4.92 in x 4.21 in x 3.09 in); Internal diameter: 15.8 mm (0.62 in); Outside diameter: 21 mm (0.83 in). Small, lightweight, and portable with convenient installation. This drill-powered pump is ideal for home, garden, and outdoor applications. Note: Measurements are manually taken; please allow a slight variation due to lighting and screen differences. Actual product may vary slightly in color and dimensions.