Made of high quality borosilicate glass Conical shape for spill prevention Integral side arm 2000ml capacity. White graduation lines, marked every 250ml Perfect for any science or home laboratory Conical filtering flask with integral side arm. 2000ml capacity with white graduations marked every 250ml. Flask measures 10.5" tall, and 7" in diameter. Neck diameter measures 1.5". Integral side arm measures 1.5" long and 0.25" in diameter. Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks. Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point -515°C | Annealing Point 565°C | Softening Point 820°C. Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments.