Borosil® Glass Filtration Assemblies offer users a complete solution for filtration & microfiltration applications. Constructed exclusively of low-extractable borosilicate glass for maximum purity, compatibility, & inertness. Fritted glass filter bases support either 47mm or 90mm membrane filter discs, depending on the size. Funnels are graduated. Common applications include HPLC solvent prefiltration, bacteria retentive testing, cannabis extraction. In collaboration with Borosil Glass Works, Foxx Life Sciences is proud to bring the outstanding quality of Borosil® Type 3.3 Borosilicate glassware to North America for the first time. Manufactured from the same USP Type 1 borosilicate glass that North American scientists have come to trust, Borosil® Laboratory Glassware offers unparalleled mechanical strength, clarity, & reliability at competitive prices. & thanks to a unique annealing process, Borosil® Glassware is stress-free & incredibly resistant to thermal shock.