Membrane Solutions 10 Pack Syringe Filter Sterile Pes Hydrophilic Filtration Product Details ?VARIOUS APPLICATION - Needle Syringe filters are broadly used in life science laboratories for sterilization of small volume samples, such as protein, culture medium, additives, buffers, reagents, and drugs. ?HIGH QUALITY FILTERS - Membrane Solutions sterile syringe filters with extremely high microbial filtration capacity and unique threaded interface design with ISO 9001 certificated. ?PES MEMBRENA - Sterile Polyethersulfone (PES) needle filters have Polyethersulfone microporous membrane, belongs to hydrophilic membrane, high flow and lowest protein adsorption, which can meet the broadly applications, such as buffer, protein, culture medium, additives and so on. ?STERILE SYRINGE FILTERS - sterile syringe filters are made with PES membrane filters with polypropylene (PP) housing, using the most advanced methods and design features. The PES syringe filters with GF pre-filter has excellent dirt-holding capacity, which makes a syringe filter a much larger throughput for some ?hard to filter? sample. ?UNIFORM PORE SIZE - Sterile PES Syringe Filter with uniform pore size structure; wide pore size selection, retention of granule cell collection. PES Syringe Filter Diameter: 33mm, 0.22um pore size can fast sterilization of buffers, culture media or other solutions. 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.