The Complete Adapter Kit for Seamless Vacuum Filtration Achieving a reliable seal between glassware components is critical for successful vacuum filtration. Our 9-Pack Buchner Funnel Flask Adapter Set provides you with a versatile range of durable, precision-molded rubber cones to ensure airtight connections and protect your valuable laboratory glassware. Why Choose Our Adapter Cones? Versatility Across Sizes: With nine different diameters included, this kit prepares you for almost any standard laboratory glassware connection. No more searching for the right stopper in the middle of an experiment. Superior Material, Superior Seal: Crafted from high-quality vulcanized rubber, these adapters offer excellent elasticity and durability. They conform snugly to glass surfaces, creating a dependable vacuum seal that minimizes leaks and ensures consistent filtration. Innovative Nested Design: The ability to nest cones of different sizes is a game-changer. It allows you to build custom adapters for non-standard connections, providing flexibility and significantly reducing the chance of glass breakage when joining mismatched components. Protects Your Glassware: The smooth, non-abrasive rubber surface acts as a buffer, preventing scratches, chips, and stress cracks during insertion and removal, extending the life of your flasks and funnels. Essential for Your Lab This adapter set is an indispensable tool for any laboratory performing: Vacuum filtration Solvent purification General glassware setup Package Includes: 9 x Rubber Adapter Cones (Assorted Sizes) Important Note: For best results, use within the recommended temperature range (0°C to 70°C) and avoid contact with harsh chemicals that may degrade rubber.