100 Pack Syringe Filter Ptfe Hydrophobic 0.22Um Membrane 13Mm, Injection Syringe Product Details ?UNIFORM PORE SIZE?PTFE Syringe Filter with uniform pore size, high porosity and high retention efficiency. PTFE Syringe Filter Diameter: 13mm, Pore Size: 0.22µm. ?HYDROPHOBIC PTFE MEMBRENA?PTFE needle syringe filters have PTFE membrane and natural hydrophobic. It also equips with broad chemical compatibility, strong chemical stability, inertia and hydrophobicity. ?FEATURE?The PTFE syringe filters withstand the autoclave process several times, hydrophobic PTFE membrane with Polypropylene(PP) housing great sheerness and thickness. ?HIGH QUALITY FILTERS?They are easy to put on and take off which are suitable for high heat with high temperature pressure resistance gas exchange. ?VARIOUS APPLICATION?PTFE Needle Syringe filters are broadly used in liquid culture jar lids for mushroom mycology cultivation to exchange air. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.