Wetted Materials: Filter holder (316 L stainless steel); Tubing (Tygon® (PVC) and GORE™ STA-PURE® (platinum-cured silicone expanded PTFE) plastic); Luer fittings (Polypropylene); Pressure sensors (Titanium); Flow cells (Polysulfone); Stir bar (PTFE); O-rings (Silicone); Vent valve (Polycarbonate)