[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. [HIGH QUALITY 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 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. Colour:As shown Material:PTFE Package Contents: 100 x Syringe Filter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.