Microlitre syringes, 1000 series, with TLL/ TLLX and gas tight

Glass barrel with PTFE-coated plunger and seal, and Luer lock outlet (TLL). With UNC female thread. Allows attachment to drive arm mechanisms, e.g. Microlab 500 Series diluters/dispensers. Gas-tight microlitre syringe without needle. TLLX= Plunger stop fitted to prevent damage to the PTFE seal. Prevents the plunger tip from reaching the end of the syringe.