Glass Chromatography Columns

Top quality 3.3 borosilicate glass, chemical resistant, to be used with SGEC-200-500 or SGEC-060-500 in chromatographic applications. 2 types:
(A)With PTFE needle valve stopcock: PTFE Rotaflo stopcock for fine control of eluent flow, sintered disc, socket for reservoirs and porosity 0
(B) With PTFE key stopcock: Sinthered frit disc, PTFE stopcock (bore: 0-2,5mm), socket and porosity 0