WarmGlass.com

I'm wanting to add a different thermocouple to my kiln and I need some of the ceramic tubing that the TC wire is passed thru, into the kiln.

Does anybody know of a reasonable source for these ?? Ideally, I'd like 4 hole, as I might add a seperate TC for an overtemp alarm.

I've seen them made of mullite and alumina. Need the 1/4" OD size.

I'd probably like to get several, to have some spares for the future.

Bill

I think this is what you want: http://www.sisweb.com/ms/sis/certb-4.htm

Google search on "thermocouple insulator" and you'll get a lot of different sites with similar products.