This series of analog heating mantles includes a case constructed of durable stainless steel and aluminum materials. The temperature level is adjustable up to 400° C. Knitted mantle is made from glass fiber yarn and designed to securely hold round bottom flasks with the top half of the flask visible during operation. Available in various sizes to hold flasks from 100 ml to 5000 ml capacity. Includes a spill collect system to drain solution if a flask breaks during use.