These Kimble Chase Kontes Condensers have standard taper joints suitable for use in chemistry set-ups. Choose from two types: Liebig Condenser EF8059 has 24/40 ground glass outer joint at top and 24/40 ground glass inner drip joint at the bottom. Jacket length is 300mm. Allihn Condenser EF8052 has straight outlet tube at top and 45/50 ground glass inner drip joint at bottom. Jacket length is 260mm. Both units accept No. 2 hose connections.