Features: 3-in-1 Filtration System: This energy-efficient aquarium filter combines mechanical, chemical, and biological filtration to ensure crystal-clear water and a healthy environment for your aquatic pets. Hang-on-Back Design: The hang-on-back design of this aquarium filter makes installation a breeze, saving space and providing easy access for maintenance, ideal for both beginner and experienced aquarists. Adjustable Flow Rate: Featuring an adjustable flow rate, this filter allows you to customize water circulation for different species, making it perfect for bettas, turtles, and shrimp tanks. Quiet Operation: Enjoy a serene aquatic environment with our quiet water pump. This submersible aquarium filter operates silently, minimizing disturbances to your fish and enhancing their comfort. Enhanced Oxygenation: Designed for optimal filtration and oxygenation, this filter promotes a healthy water cycle, ensuring your fish thrive while reducing harmful toxins in your aquarium. Specification: Material: ABS Details: ModelAQ-500FAQ-1000FAQ-1500FAQ-2000FPower 6W15W25W 28W Flow 500L/H1000L/H1500L/H1800L/HCable Length1.1m1.1m1.1m1.1mFit Tank Under 0.6mUnder 0.8m Under 1.0m Under 1.2m Size11.3*5*3.4cm6*5*21cm24*7*5.5cm32*7*5.5cm Notes: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor an brightness. 2. Please allow slight manual measurement deviation for the data. Include: Choice 1: 1*Hang-on-Back Aquarium Filter 1*Tube 1*Valve or Choice 2/3: 1*Hang-on-Back Aquarium Filter 1*Sponge 1*Tube 1*Valve 2*Connectors or Choice 4: 1*Hang-on-Back Aquarium Filter 2*Sponge 1*Tube 1*Valve 2*Connectors