Titan3 PTFE (Hydrophilic) Syringe Filters 0.2 µm, 17 mm, 200 Pk. Diameter (Metric) 17 mm. Diameter (Metric) Membrane. 17 mm. Disposable. Yes. For Use With (Application) Sample Filtration: aggressive organic, highly basic, or hot solutions, transducer protectors; aqueous solutions after prewetting with an alcohol.