BUBBLE MAGUS PROTEIN SKIMMER NANO QQ2BM SP600 Protein Skimmer Pump8.5 Watts120 L/HBuilt in Air SilencerCollection Cup and Drain15.25" fully extended4 1/2"x4"Rear clipGREAT FOR ALL-IN-ONE TANKS, Small sumps, Frag Tanks,CAUTION - HANG ON INTER-WALL