Engine Oil Changer Oil Drain PumpPolished brass hand pump connects directly to engine oil dipstick tube on many popular marine engines such as OMC and Mercruiser.Features:Screws 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.