For sale are used lab glass condensers. Each is sold separately from the "select" drop down menu:-- A) Pyrex Liebig Condenser With 24/40 ST Joint,
-- B) Pyrex Allihn Condenser With 24/40 ST Joint,
-- C) Pyrex 3880 MCO Friedrich Condenser, 45/50 ST Joint
If you have any questions, just ask.