Autoclavable Carboy with Tubulation, PP body, PP screw closure Serrated tubulation molded in one piece with bottle, for strength and leak resistance. Outlet low on bottle for more complete drainage. Convenient wide shoulder handles for easy carrying. Are also graduated to deliver in 1-gal. and 5-L increments. 10- and 20-liter sizes take 1/2-in. (13mm) I.D. tubing. A hose clamp should be used when attaching tubing to ensure a tight fit and avoid leaking. . Autoclavable/Graduated/Leakproof† . Closure Size: 83B (83 mm)(Also take No. 13-1/2 stopper) Nominal Shoulder Capacity: 20 l (5.5 gal) Brim Capacity: (approx.) 22.5 l . NOTE: For best results, autoclave using a properly vented closure. See Sterilizing in the reference section.