Fluval Sea Protein Skimmer's spacesaving design and ultra silent operation is a smart alternative to larger skimmers, as it delivers the same organic removal capacity as bigger models.The protein skimmer features an easy-to-maintain, modular design that allows full and easy access for cleaning. It also has an easy-to-adjust skimming control mechanism and multi-venturi impeller. This skimmer provides what every marine aquarium requires: pure reef-like water conditions. Key Features : Easy to install Silent operation Can be taken apart easily for quick cleaning Easy-to-adjust air intake and skimming intensity Adjustable foam collector cup Unique multi-fan impeller design Easily clips-on to rear of aquarium Pump designed specifically for skimmer use with super efficient multi-venturi impeller Super low energy consumption Prevents bubbles from escaping skimmer system For aquariums up to 170 L (45 US Gal) Size: Height: 33 cm H x 12.5 cm W x 8 cm D 4 Watts