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This device is to maintain and collect solvents in an inert atmosphere. The top of the main vapor tube is open and an additional vapor tube has been added to decrease risk of pressure buildup. The upper sampling port has a 4 mm Teflon® stopcock with a 14/20 outer joint for use with septa. The lower drain is centered to allow total drainage of storage head. The double oblique 2 mm bore Teflon® stopcock allows for removal of distilled solvent or return to flask. Both the uptake tube and top outer joints are 24/40; the take-off tube can be either a 14/20 or 24/40 inner joint. Available in 4 versions.