May be used with either common chemical funnels or fritted ware

·         Larger size will accommodate a 250 mL Erlenmeyer flask

·         Bottom of the flange is ground, so that a seal may be made with a piece of ground flat glass

·         Flat glass is not supplied

·         Tooled hose connection is designed to accept 5/16 inch ID flexible tubing

·         Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements