This mantle permits viewing of contents while heating. It covers only the flask's bottom half, letting you see its full contents. Aluminum exterior for extreme durability. Fabric interior to softly nest glass vessels. Especially well suited for cylindrical vessels like beakers and resin flasks. Withstands 450°C internal operating temperature. The 12000, 22000 and 72000 ml sizes each have 2 circuits. The 50000ml size has 3 circuits. A detachable 4 foot 3-wire cord and locking connector is provided for each circuit for 50ml to 22000ml sizes. The 50 and 72 liter sizes have an approved terminal box. Mantles with bottom drain opening are available on special order.
