Thermowell, M10, 300mm Immersion Length, for 7L Bio Reactors. M10 threaded thermowell having a ID of .310 that will accept 1/4 thermocouple probes. To enhance the temperature measurement the thermowell should be partially filled with a heat conducting silicone or mineral oil.Like-for-like replacement parts for Applikon Biotechnology and Broadley-James brands of bioreactors.Applikon is a registered trademark of Applikon Biotechnology, Inc. Broadley-James and Broadley-James Corporation are registered trademarks of Broadley-James Corporation.