EZFlow® Vent Filter, 0.2μm Hydrophobic PTFE, 25mm, Non. These syringe filters are available in a variety of filter membrane materials, offered in 0.2µm or 0.45µm pore sizes. The filter membranes are reinforced with polypropylene housing with a female Double Luer-lock inlet and a male Luer slip outlet. Get Quotation.