I purchased this to keep fish fresh in the livewell scupper of my pleasure boat, but I ended up not using it because I sold the boat. (Functionality confirmed) Bilge pump with 500 GPH output, operates on 12V power. - Model: Rule 500 GPH Bilge Pump - Model: KeepAlive Oxygen Infuser - Included: Instruction manual - Output: 500 GPH / 1890 LPH - Voltage: 12V - Fuse Requirement: 2.5 AMP Thank you for looking.