Alcohol tolerant rubber grommet for laboratory thermometers. 1/8" hole.
Sleeve requires 1/4" hole.
Alcohol tolerant rubber grommet for laboratory thermometers. 1/8" hole.
Sleeve requires 1/4" hole.
Worked great to place a K type thermocouple in a copper end cap, recommend using a bit of lube to avoid pushing the sleeve through the hole.