Chalk this one up to an initial oversight on ordering. I could have had one added onto my trailer when it was built, but to save a few bucks, I opted not to. I should have had one installed when it was built. But I had in my mind that since I had a couple of extra 20lb propane bottles already, I’d find a holder to put one on my trailer tongue. That didn’t work out how I’d hoped. I couldn’t find one that I could just buy and bolt on. Anything would have required custom welding for proper support, and I just didn’t feel like doing that.