Suitable for liquid and gas samples 10μL to 100mL capacities Constructed from borosilicate glass, with PTFE plunger tips and Kel-F™ Luer cones (where applicable) Needles align with zero mark on barrel to reduce dead volume, improve accuracy and precision to <±1% Replaceable plungers on all models Removable-needle models feature a PTFE seal, a spring and nut for leak-resistant operation; come with needle