All,

I have just checked my (new to me!) K&B 19 and K&B 29. The Glo Plug in the 29 is "glowing fine, but the Glo Plug in my K&B 19 shows no glow at all.
What is a good source to buy more K&B Glo Plugs??? What is the threading?? Are the plugs for the 19 and 29 the same? Can I just interchange them temporarily?
I see plugs on various web sites, but have no clue if these would fit or are with matching threads!

Thanks for any help and/or assistance!

aaganz