The Aquatop Xyclone Protein Skimmer is designed to easily and effectively remove organic waste from aquarium water. A needle wheel impeller increases the contact area to maximize efficiency. Simple, accurate control allows you to adjust output quickly and easily. The result is cleaner, clearer water with healthier aquatic life. Features: Effectively removes organic waste from aquarium water Includes: Pump w/ Needle Wheel Impeller Adjustable Dual Outlet Removable collection cup Air line Strainer 2 sponges Intended Pet(s): Fish Material(s): Plastic Color: Black Product Dimensions: 10.5 in L x 14 in W x 22.5 in H Size: Small.