Features and Benefits:The 15 Liter Fluid Extractor system is hand or air-operated for fast extraction of fluidsTwo different diameter extracting tubes are included to suit your particular application. Both extraction tubes measure 3.5 ft. in Length but with 2 different O.D. measurements. Large Hose Diameter: 6.75mm & Small Hose Diameter: 6.0mmUnit has a vacuum release button for quick and easy release as well as a 3.4 ft. Dipstick for clearing the extraction tubesDisplace 15 Liters (4 GAL) of fluid in minutes while maintaining a clean, oil-free work spaceSpecially designed pour spout for mess-free emptying of container & a Flip out foot step for stability while using the extractor