1700 series syringes are the Gastight® version of the original Hamilton 700 series syringes. This series of syringes is ideal for dispensing volumes from 1 μL up to 500 μL. Gastight® syringes are ideal for dispensing both liquids and gases. They have a precision-machined PTFE plunger tip which creates a leak-free seal. With the tight fit, the tip essentially wipes the interior of the syringe barrel free of sample. This feature is particularly useful with heterogeneous samples as it reduces the chance that a deposit will occur and cause the plunger to freeze. A variety of different terminations and needle options are available.