This is an efficient 250mL PYREX® extraction apparatus for general purpose use. Consists of a Soxhlet extractor with a 24/40 inner Standard Taper joint on the bottom and a 45/50 outer Standard Taper joint on the top, a special Friedrichs condenser with a 45/50 inner Standard Taper joint on the bottom and a flask with a 24/40 outer Standard Taper joint. The condenser tubulation O.D. is 10mm. For a replacement extractor only, see No. 3740; for a replacement flask, see No. 4100; for a replacement condenser, see No.