I’ve added a one gallon (5 pound) propane tank to the swim step of our R25 Classic. The propane tank is strapped down to the step in the vertical position.
Used this edge protection on the bottom of the tank. Also used it where the straps go through the holes at the top of the tank to prevent abrasion. Very durable stuff - hard plastic with imbedded metal structure. See below for brand and description.
Take the tank off the step after each cruise and wash it down with fresh water. Kept off boat between cruises. After one season no appreciable rust.
The one gallon bottle lasts us 3-4 weeks of cruise time before needing a refill. We are just supplying the Magma grill though, not a propane stove.
o Kaixuan KX Edge Trim Black Small, 1/8" Fits Edge, PVC Plastic Edge Trim U Shape Black Large Edge Protector (10 Feet)