Propane bottle covers

We're getting closer to being able to finally pull the trailer out of the hangar!!  Since we went to all the expense of replacing all the hoses/regulator/etc for the propane gas tanks, I thought it would be good to protect them from the elements.

I tried to find a "hard shell" cover - but ours are the larger 40lb tanks and I couldn't find one to fit.  They make the hard shell ones for 20 and 30 lb tanks, but not 40 lb.  

All I could find was the pull-over vinyl one.  It will do the trick....I'm not terribly pleased with the look right now, but hopefully it will smooth out once its out in the sun.