With PTFE plunger seal. Gastight microlitre syringes with cemented-in needles (N). Needle length: 51 mm

Microlitre syringes, 1700 series, with cemented needle (N)
Microlitre syringes, 1700 series, with removable needle (RN)
Microlitre syringes, 1700 series, with TLLX and gas tight