The multipurpose 50 mm filters are designed for small volume venting, gas and solvent filtration. The filters are offered with stepped hose barb inlet/outlet connections. Designed and supported for bi-directional flow, the 0.2 μm-rated filters serve as a cost-effective hydrophobic vent filter. Additionally, the filters can be used to filter up to one liter of solvent or solvent-based liquids. When pre-wet with alcohol, the filters can be used to filter aqueous liquids. The filters are designed for use in laboratory and research applications. PVDF filters can be gamma irradiated and are ideal for venting biocontainers. Both filters can also be safely autoclaved up to 30 times. Typical applications for the 50mm filters include sterile venting of carboys, filling vessels, fermentation tanks and bioreactors, as well as small volume filtration of aggressive solvents and aqueous solutions, when pre-wet with a low surface tension fluid.