Vial, Cap, Syringe Filter manufacturer / supplier in China, offering 25mm PTFE Hydrophilic Syringe Filter 0.22um with Outer Ring, Labfil Sterile 33mm PTFE Hydrophilic Membrane Lab Syringe Filter, Alwsci 13mm Nylon Syringe Filter 0.22um with Printing and so on.