[15W BOTTOM SUBMERSIBLE PUMP]: This water pump can prevent dry burning and effectively clean the loot at the bottom of the fish tank Maximum flow: 800L/H, maximum lifting height: up to 1 8m Watt: 15W, Power cord: 1 5m [Water Flow Control & Bottom Suction Trainer]: An adjustable knob to control the water flow rate, so you can get the desired water pressure Maximum flow: 800 L/H Bottom suction trainer prevents dry burn, 100% diving [DETACHABLE AND CLEANABLE]: This compact and ultra-quiet submersible pump is easy to hide or camouflage The device can be disassembled without any tools and is very easy to clean [WIDE APPLICATION]: This submersible pump is energy saving, efficient and super quiet Designed for use in ponds, fountains, waterfalls, hydroponic systems, irrigation systems and water features