PTFE Syringe Filter with uniform pore size, high porosity and high retention efficiency. PTFE Syringe Filter Diameter: 13mm, Pore Size: 0.22µm. PTFE needle syringe filters have PTFE membrane and natural hydrophobic. It also equips with broad chemical compatibility, strong chemical stability, inertia and hydrophobicity. The PTFE syringe filters withstand the autoclave process several times, hydrophobic PTFE membrane with Polypropylene(PP) housing & great sheerness and thickness. They are easy to put on and which are suitable for high heat with high temperature & pressure resistance & gas exchange. 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:plastic Package Contents: 100 x syringe filters Only the above package content, other products are not included. Note: Light reflection 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.