This Pyrex® extractor system consists of a Soxhlet extractor, an Allihn condenser, and a flask, all equipped with Standard Taper joints. The tubulation O.D. on the condenser is 10mm. Replacement parts are available. For glass extraction thimbles with fritted discs that can be used in these units in place of paper thimbles, see Cat.No. 1-33950 series.