4000mL Glas-col Heating Mantle, Series O, Cylindrical, 6 5/16in ID x 11 1/4in Depth, Bottom Drain Opening, 1000 Watts. This Glas-Col Series O mantle is similar to CG-10007 except mantle is slit lengthwise to a 1 hole in the bottom center with lacing closure to accommodate a cylindrical reaction vessel, CG-1924, with a bottom drain. Mantle is glass fabric, 115 volts, and is supplied with a separable 4 foot, 2 wire extension cord with locking connector for each circuit. The 10,000mL size has two circuits at the listed wattage.
