Foxx Life Sciences 364-2612-Oem Ezflow Membrane Disc Filter, Nylon,, Pack Of 50 Product Details EZFlow 13mm, 25mm, 47mm, and 90mm membrane disc filters are used to retain particles or microorganisms by surface capture. The membrane disc filters are available in a nylon material or hydrophobic PTFE material with polypropylene support, offered in 0.2µm or 0.45µm pore sizes. The Nylon membrane is has great chemical resistance and makes them ideal for filtering more aggressive solutions such as alcohols and DMSO. The Hydrophobic PTFE membrane is bonded to a polypropylene support and due to its extreme chemical compatibility, they are ideal for the filtration of solvents and acids or other aggressive chemicals. All materials comply with USP Class VI Standards and compliances. Filter diameter: 47MM Filter pore size: 2µm Filter material: nylon Country of origin: China 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.