Ace Glass 6499-10 100 mm Head with 4 Necks, 24/40, Conical Flange

Conical flange with 4" (100 mm) opening. (1) center joint and (3) side necks. Center neck in-line with two 24/40 side necks. Third side neck is perpendicular to the in-line necks. Similar to 6488 series except all the side necks are 24/40. For use with 6475, 6476, 6477, 6479, 6480, 6481, 6491, and 6492 ACE reaction flasks.