Designed for storage of solutions or media preparation. The 13.25 L sizes are conventional shape; the 19 and 45.5 L sizes are similar to carboys in design. Necks are tooled to increase mechanical strength and for uniform stopper fit. Accepts No. 12 rubber stopper. Type I glass.

Available plain or with graduations. Graduated bottles have black enamel graduations in double scale, graduated in 500 ml increments.