Extractor / Concentrator Glassware Products & Reviews

These 500 mL PYREX® Kuderna Danish Concentrators are supplied with Keck clamps instead of spring hooks. The complete apparatus consists of a 3-Ball Snyder column (with 24/40 Standard Taper joints), a 500 mL flask (with 24/40 Standard Taper top and 19/22 Standard Taper lower joint), and a graduated 10 mL tube with an outer 19/22 Standard Taper joint. The tube graduations go from 0 to 2 mL in 0.1 mL increments and from 3 mL on i…

Brand: PYREX®

These PYREX® replacement 10 mL tubes fit the Kuderna Danish Apparatus and have an outer 19/22 Standard Taper joint. The tube graduations go from 0 to 2 mL in 0.1 mL increments and from 3 mL on in 1.0 mL increments.

These 500 mL PYREX® replacement flasks fit the Kuderna Danish Apparatus and have a 24/40 Standard Taper top and 19/22 Standard Taper lower joint.

This 10 mL PYREX® replacement Kuderna-Danish tube has a 19/22 outer Standard Taper upper joint. The tube graduations go from 0 to 2 mL in 0.1 mL increments and from 3 mL on in 1.0 mL increments.

This complete 250 mL PYREX® Kuderna-Danish Concentrator apparatus consists of a 3-ball Snyder column with 24/40 Standard Taper joints (2158-3CO), a 250 mL flask with a 24/40 outer Standard Taper upper joint and 19/22 inner Standard Taper lower joint, and a 10 mL graduated tube with 19/22 outer Standard Taper joint. The tube graduations go from 0 to 2 mL in 0.1 mL increments and from 3 mL on in 1.0 mL increments. If further con…

This 250 mL PYREX® replacement Kuderna-Danish flask has a 24/40 outer Standard Taper upper joint and 19/22 inner Standard Taper lower joint and includes a pair of 1 1/4 inch stainless steel springs.

This 25 mL PYREX® replacement Kuderna-Danish tube has a 19/22 outer Standard Taper upper joint. The tube graduations go from 0 to 2 mL in 0.1 mL increments and from 3 mL on in 1.0 mL increments.

This 3-ball PYREX® Snyder column has a 24/40 Standard Taper inner joint on the lower end and a 24/40 Standard Taper outer joint on the upper end.

This complete 500 mL PYREX® Kuderna-Danish Concentrator apparatus consists of a 3-ball Snyder column with 24/40 Standard Taper joints (2158-3CO), a 500 mL flask with a 24/40 outer Standard Taper upper joint and 19/22 inner Standard Taper lower joint, and a 10 mL graduated tube with 19/22 outer Standard Taper joint. The tube graduations go from 0 to 2 mL in 0.1 mL increments and from 3 mL on in 1.0 mL increments. If further con…