Bee Hive Extraction Tube Kit. Kit includes Glass Extraction Tube, Stainless Steel Butterfly Hose Clamp, 3 Food Grade solvent resistant Polyester screens; 25, 50 and 100 micron, and a bar coded box. Bee Hive Extraction Tube. Made of heavy duty Schott Glass, not cheap Chinese Glass. 26mm outside Diameter, 4mm wall, 8 inches long, Boro Glass; Made in the USA.