O.E.M. Heaters will be closed on Friday, June 28th for inventory. We will also be closed on Thursday, July 4th and Friday, July 5th for the holiday.
Industrial electric heat supply made fast, simple, and accurate

 866-685-4443 | Get in Touch Online

Complete Spherical


  • Applies full-coverage, uniform heat to round-bottom flasks
  • Excellent alternative to other heating methods like Bunsen burners
  • Ideal for use with a basket ring stand
  • Opening holds flasks with up to 3 necks


  • Fiberglass cloth outer shell
  • Uniform, low-watt-density, knitted-and-braided heating element Heating temperatures up to 842°F (450°C)
  • Multi-stranded resistance wire for maximum durability and flexibility
  • Zipper fastens upper and lower halves together
  • Plug and play: plugs into a standard outlet
  • Temperature controller required

If you have any questions regarding laboratory mantle heaters, please call us at 866-685-4443, e-mail us, or send us a contact form.