Lisa and I walked to the post office today after my lunch, as is our common practice. On the way back we saw that Bob Hanneman, owner of the place where we buy our propane, was out and about getting ready to do a AAA service call. We stopped and showed him pictures of the adapter fitting to allow the 100# propane bottle to be used with "hard nose" POL fittings like those found on many RVs and travel trailers. He was glad to know about this, because his business fills lots of different kinds of propane bottles and now he can advise people with the large bottle if they say they're having problems attaching it to the equipment. If we have prevented even one propane leak, it's worth it.