Which propane tank are these? Need to replace.

jjj wrote:
That is why I changed to the 20 lb. ones. When they close to date I swap them out at homedepot or where ever and never worry about having to buy new ones. I keep a extra full one locked in the bed of the truck for when one runs out and then get the empty filled or exchange it.

I also went to 20's on my travel trailer years back. 20's were much cheaper and easy to swap. I got a shorter threaded rod, and life was near perfect. My gas usage wasn't that high that I needed 30's.
Brian