For organic solvents and liquid compounds that may swell PTFE. With glass dispensing barrel and precision glass piston. Barrel graduated in black. Visible dispensing. PTFE valve block (GL32). With colour-coded plunger handles. Sizes 2ml to 100ml autoclavable (Please read the autoclaving instructions carefully before proceeding). Items supplied: Dispenser without reservoir bottle; PTFE suction and discharge tube and two PP bottle adapters (GL40 and GL45). Conformity-certified with precision certificate.