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