â¤ WIDE APPLICATION - Circulate and aerate the water, making it more attractive to your fish or turtles. This submersible pump is perfect for aquarium, fountains, spout and hydroponic systems, etc. â¤ MULTIPLE CHOICES - We provide with 6 kinds of submersible Water Pumps with different FLOW RATE(160GPH,210GPH,320GPH,660GPH,800GPH),you can choose one or more from our Store according to your needs. â¤ WATER FLOW CONTROL - An Adjustable Knob to control the water flow rate, so you can get just the amount of water pressure you want. Maximum flow rate: 660GPH (2475L/H). â¤ SAFE & EASY TO CLEAN - Safe for fish with waterproof cable. Easy to clean with no tools required to disassemble and clean filter/impeller. â¤ ULTRA-QUIET OPERATION - Running at a whisper-quiet level, the motor inside produces no noise, which gives you a quiet environment.