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This 2000mL, 120VAC HM lower hemispherical heating mantle is ideal for use with a basket ring stand. It applies uniform heat to round-bottom flasks with a low-watt density utilizing a knitted and braided heating element with a multi-stranded resistance wire for increased durability and flexibility. It has a pre-molded fiberglass liner with wool and ceramic insulation, covered by a fiberglass cloth outer shell. Useful for temperatures up to 842°F (450°C). This 120VAC model includes a 3in (76mm) lead wire with a NEMA L1-15R connector and a 4ft (1.2m) power adaptor cord with a NEMA 1-15 plug. Requires temperature controller (sold separately). Plug Included. Inner Liner Material: Fiberglass. Insulation Material: Wool And Ceramic. Outer Shell Material: Fiberglass Cloth. Lead Wire Length: 3in (76mm). Connector Type: NEMA L1-15R. Power Adapter Cord Length: 4ft (1.2m). Plug Type: NEMA 1-15. Maximum Temperature: 842°F (450°C). Size: 2000mL. Total Watts: 500. Voltage: 120VAC. Brisk Heat #: HM2000-HS1.