I'm sure this has probably been covered, but just in case... Bought as book the other day called "100 boat projects" or something like that, at Boat US. Real simple project that I think is smart. We all store our Coleman propane caniaters down in somewhere, right? Well, appears that that is not too smart, we all know propane sinks. So, went to Home Depot, bought a length of 4" PVC, a cap for one end, a sewer inspection plate for the other, 2 big hose clamps. Cut the PVC for a little more than 2 canisters, drill a small vent hole in the cap, glue on. Glue the screw on sewer vent cover and collar to the other end, unscrew it, toss in the 2 canisters, clamp it to a stanchion, making sure the gas can't leak into the cockpit. Real easy to do, I made 4 while I was at it, will keep 2, give 2 to my buddy. They are a little ugly, figure I will cover with a fender cover. Bruce