[UNIFORM PORE SIZE]PTFE Syringe Filter with uniform pore size, high porosity and high retention efficiency. PTFE Syringe Filter Diameter: 13mm, Pore Size: 0.22m. [HYDROPHOBIC PTFE ]PTFE needle syringe filters have PTFE membrane and natural hydrophobic. It also equips with broad chemical compatibility, strong chemical stability, inertia and hydrophobicity. [ FILTERS]They are easy to put on and which are suitable for high heat with high temperature & pressure resistance & gas exchange. [FEATURE]The PTFE syringe filters withstand the autoclave process several times, hydrophobic PTFE membrane with Polypropylene(PP) housing & great sheerness and thickness. [VARIOUS APPLICATION]PTFE Needle Syringe filters are broadly used in filtration of various organic solvents, as well as the filtration of strong acid and strong solutions. They are also suitable for gas filtration/filtering and other particulate, dyes. Material:PTFE Package Contents: 200 x Syringe Filter