Gastight Syringe Model 1702 N, 25 µL, Cemented Needle (22s/2"/2). Hamilton
Hamilton's "1700 Series" syringes are the Gastight version of the original 700 Series syringes. This series of syringes is ideal for dispensing volumes from 1 μL up to 500 μL and comes in a variety of different terminations and needle options.