Sterile Syringe Filter Pes Hydrophilic Filtration, 25Mm Membrane Diameter, Product Details Sterile Syringe Filters PES:100% integrity tested, individually packaged,Gamma irradiation Syringe Filter Diameter:25mm,pore size:0.45um,20/pack Sterile individually packed: Individual expiry date for easy QC tracking PES Membrance : Sterile Polyethersulfone (PES) needle filters with Certified non-pyrogenic and biologically safe Application: Needle Syringe filters with tissue culture media preparation, Sterile filtration and clarification of biological fluids,Probe solutions,Protein and enzyme filtrations,Hybridization buffers 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.