SUNWEN Aquarium External Ultra-Quiet Canister Filter, Fish Tank Water Circulation Filter with Filter Media 171/225/266/317/397GPH

3-STAGE FILTRATION: Water flows through media layers to filter water and ensure a clean aquatic environment.. VERSATILE: For freshwater and saltwater aquariums.. FAST SETUP: Water-tight canister lid lifts up for easy removal.. EASY MAINTENANCE: Valve block for quick release to shut down water flow – separates from housing for quick, spill-free maintenance.. Filter Foam pads screen out dirt and debris. Fills filter chamber with water for self-priming system startup. Please refer to the 6th main picture for the operation guide, the last main picture for operation precautions. If you find any problems in the process of operating the machine, please feel free to contact us, 24 hours online service for you!