PTFE barrel pump, Immersion depth 40 cm, 180 ml/stroke, 1 unit(s)PTFE barrel pump, Immersion depth 40 cm, 180 ml stroke Material: PTFE, FEP. Excellent chemical resistance for safe filling of ultrapure and aggressive liquids. Works according to the piston stroke principle Stopcock stops liquids from dripping and prevents hazardous vapours from escaping Good residue emptying by a low mounted non return valve and barrel screw joint that can be continuously adjusted with respect to height Barrel screw joint attaches