You are looking at a used, manual oil changer (2.9 quart) bought through West Marine about 5 years ago. I have used it 5 times to change the oil in my marine diesel engine. Since I no longer own a boat, I need to pass this on to someone who can use it. Current (new) price for this changer is $90 at West Marine, so I think pricing this one half that is fair. Email me with any questions.