Use for storing and dispensing solutions or media. Ideal for sterile water storage—can be autoclaved before refilling to stop recurring algae or bacterial growth. Excellent chemical resistance. Graduated todeliver in 1-gallon and 5-liter increments. Spigot boss molded in one piece with bottle, not welded on, for strength and leak resistance. Convenient wide shoulder handles. Leakproof polypropylene; PP spigot and screw closure, TPE gasket. Note: Autoclave only when empty. Before autoclaving, just set cap or closure on top of the container without engaging the threads.