Effortlessly sample a wide range of liquids with these single-hand operated sampling vessels. There are two models to choose from. Items 06041-67 and -68 open with a thumb operated draw and release mechanism, emptying the liquid from the discharge funnel. The valve within the funnel is opened with the thumb operated handle. The second model, available as part numbers 06041-69 and -70, features a gravity compression release. The valve is opened by attaching it to a sample container, and gravity forces the liquid out of the discharge vessel.