Engine Oil Drain PumpPolished brass hand pump connects directly to engine oil dipstick tube on many popular marine engines such as OMC and MercruiserScrews onto threaded male 3/4" garden hose (GHT) fitting on top of dipstick tube.Gives simple "one-hand" pumpingComplete with 2ft of 1/2" ID drain hoseWARNING: This product can expose you to chemicals including STYRENE which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.