Eheim Compact Plus Marine Pump, Circulation pump compact+ with needle wheel for protein skimmer, Needle Wheel for higher performance Completely safe due to hermetically sealed motor High performance ceramics for quiet running, smoothness, and extremely long life, Suitable for long term use inside or outside water; not self priming, Included 4 suction feet Connection on pressure side with G 1 Connection on suction side with G 1 WITHOUT diffuser and installation material, Pump Output: 211-713 gallons per hour, Voltage: 115, Hertz: 50, SKU: RYLHC1751