Aquarium Electric Gravel Cleaner Filter Washer Pump Siphon Vacuum Water Change for Fish Tank Material: Plastic Powered by: 2 * C/LR14 Batteries (not inclueded) Flow Rate: 520 L/h , Max Water Depth: 55cm / 21.65in Package Size: 30 * 11.5 * 5.5cm / 11.81 * 4.53 * 2.16in (L * W * H) Pack : 1 Set