ADAPTERS, EXPANSION (0683) Made from Borosilicate glass. Useful for connection of dissimilar sized ground glass joints. Has large sized socket at the top with small size cone at the base. Combinations Available are Socket Size 14/23 Cone Size 10/19, Size 19/26 Cone Size 14/23, Size 24/29 Cone Size 14/23, Size 24/29 Cone Size 19/23, Size 29/32 Cone Size 14/23, Size 29/32 Cone Size 19/26 & Size 29/32 Cone Size 24/29. Qty :