Pagow Buchner Funnel Flask Adapter Set, Filter Adapter Cones Set, Tapered Collar Specification: Material: Neoprene Size: Set of 9 neoprene adapter cones designed to fit Buchner and fritted glass funnels Product Features Set of 9 different size neoprene adapter cones designed to fit Buchner and fritted glass funnels Made of Neoprene: These adapter cones are designed to fit around the stem of Buchner funnels, porcelain filters (minus headpieces), and fritted glass funnels. Extremely useful in the reverse flow cleaning of filter crucibles. Widely Used:Perfect for supporting funnels, Gooch crucibles, filter tubes and other apparatus that are routinely used in filtration assemblies. With different sizes of adaptersL: can be used individually or in a nested combination with ones or more adjacent sizes. Fully autoclavable:Fully functional even if they are not tightly fitted around the stem of the funnel being used. They are also an excellent alternative to boring special sized holes in rubber stoppers, or using the more unstable rubber filter aid. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!