0.22Um Pvdf Membrane, Sterile, Advangene 150Ml Bottle Top Vacuum Filtration Product Details Unsurpassed PVDF membrane manufactured by a US company. Suitable for filtration of buffers and culture media. Having very low affinity for proteins and extractable. ADVANGENE, US company, filter manufactured under ISO9001 Individually wrapped and sterilized Polyvinylidene fluoride (PVDF) membrane with 0.22 micron pore size provides good flow rates and lowest protein binding and low extractable, and best filtering of cell culture media Engraved graduations ensure high accuracy and easy measurement Virgin polystyrene for optical clarity and consistency 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.