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Plain top, general purpose column for analytical chromatographic separations. Glass stopcock and bottom stem are replaced by a PTFE valve and PTFE stem assembly which virtually eliminates the possibility of stem breakage. The unique valve only requires a quarter turn from fully open to closed.

Replacement valve
#4451-42
#4451-44

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2013 Chromatography, Column, with PTFE Valve - Manufactured by NDS Technologies, Inc.

Chromatography, Column, with PTFE Valve, 10mL Nominal Valve, Column ID 11 x 150mm Length
List Price $153.68
2013 Chromatography, Column, with PTFE Valve - Manufactured by NDS Technologies, Inc.

Chromatography, Column, with PTFE Valve , 15mL Nominal Volume, Column ID 11 x 200mm Length
List Price $153.68
2013 Chromatography, Column, with PTFE Valve - Manufactured by NDS Technologies, Inc.

Chromatography, Column, with PTFE Valve, 20mL Nominal Volume, Column ID 11 x 250mm Length
List Price $143.78
2013 Chromatography, Column, with PTFE Valve - Manufactured by NDS Technologies, Inc.

Chromatography, Column, with PTFE Valve, 30mL Nominal Volume, Column ID 15 x 200mm Length
List Price $160.48
2013 Chromatography, Column, with PTFE Valve - Manufactured by NDS Technologies, Inc.

Chromatography, Column, with PTFE Valve, 40mL Nominal Volume, Column ID 15 x 250mm Length
List Price $164.76
Product Name N/A Chromatography, Column, with PTFE Valve
Nominal Volume N/A 10 mL N/A 15 mL N/A 20 mL N/A 30 mL N/A 40 mL
Column Inner Diameter N/A 11 mm N/A 11 mm N/A 11 mm N/A 11 mm N/A 15 mm
Column Length N/A 150 mm N/A 200 mm N/A 250 mm N/A 300 mm N/A 200 mm
Valve Size N/A 2 mm
Pkg. Qty. N/A 1