carrying spare propane (20#) while traveling

We also carry a 30# cylinder for use with our Extend-A-Stay hose during longer stops. We normally use another hose connected to the accessory port on the Extend-A-Stay for our grill, but we also carry a couple of throwaway 1# cylinders for use when we want to set the grill up further away from the coach. The 30#er rides in a bin that I equipped with straps and a vent for that purpose.