Nalgene autoclavable carboys with 1.5" sanitary flange features welded-in closure for use as a dispensing port.

The carboys have molded- in handles for ease in transporting containers, also they have molded in graduations in 1 gal. and 5 L increments. These carboys provide a secure hookup for use as a supply reservoir to systems such as fermentor or chromatography column.