GRADUATED FILTERING FLASK KIMAX flask with side tubulation. Capacity scale Flasks are designed for vacuum to 29? of mercury Made with a heavier wall than a standard Erlenmeyer flask All sizes have side hose connection 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 Capacity (mL) : 25 Height (mm) : 74 Graduation Range (mL) : 5 to 25 Subdivision (mL) : 5 Widest OD (mm) : 40 Rubber Stopper Size : 3 Shelf-Pack Qty : 6 Case Qty : 18