So this seems like a basic question, but I'll ask anyway because I've seen varying answers. Our new trailer has one 20# propane tank. It generally looks just like a tank at your local Menards you ca...
Most exchange places have the 15lb. figure posted if you look close enough. I have a relative that delivers cylinders to the exchange places and he loves the lighter weight.
Re-certifying is cheap and easy if you have a cheap set of Harbor Freight stamps. :W