Merck 109996 Adapter S 40 For The Direct Aspiration Of Solvents Through Tubes Of 3 Mm O.D. From Bottles With S 40 ThreadMerck 109996 Adapter S 40 For The Direct Aspiration Of Solvents Through Tubes Of 3 Mm O.D. From Bottles With S 40 Thread, Merck109996.0001