Jad Protein Skimmer WG-524Protein skimmer: WG-524volt: AC230/115Vfreq: 50/60Hzpower: 20Wflow rate:150-300L size: 194x171x576mm1. Imitation of the natural zoology.2. Safe and reliable quality with device inside to prevent overheat.3. Excellently eliminate protein and organic com-pounds.4. Assem..