1L Borosilicate Glass Funnel Filtering Kit With 250Ml Funnel Borosilicateand 1L Product Details High Temperature Resistant:The Buchner funnel filter kit is Made From G3.3 Borosilicate Glass, which is resistant to high temperature and corrosion. Aperture:G3 15~40 ?m Nominal Max. pore size. Capacity?Flask Capacity: 1000mL, Funnel Capacity: 250mL. After-sale serviceIf: you have any questions about the use and quality please contact me. I will get back to you within 24 hours? 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.