These economical carboys offer stylish rounded octagonal shape for increased strength when full. Offset neck makes filling and pouring easier. Autoclavable polypropylene construction features integral, blow molded handles for more comfortable carrying. Handles are also end-sealed to prevent contamination. Graduations are molded into the front allowing easy reading even when several carboys are used in a row. Carboys with stopcocks feature a durable and leak-proof stopcock with boss fitting for extra strength. For added convenience stopcocks include removable tube fitting.