Adopter 3 neck 4001103 Posted on February 20, 2017 by admin Made of Borosilicate glass. Cat No. Cone Cone Size 4001103A 19/26 24/29 4001103B 19/26 29/32 4001103C 19/26 34/35 4001103D 19/26 45/40 4001103E 19/26 55/44