I assume by "tube" you mean the insert itself. If so, you will have to fabricate (or have fabricated) something that will fit into the allowed space. Have you tried calling Al at Sailboatowners.com. He is a wealth of knowledge and maybe he can help you. It must be sealed from the boat and sealed on the top with the only vent path directly down and overboard with no "traps or loops" in the line. I imagine it will be expensive given the liability associated with a potential leak into the boat where the propane can pool and cause an explosion.
Thank you, yes I have called sailboat owners and left a message. I have talked to a fiberglass fabricator in my area. crazy $$$$ they want $1,600 to fix the 1 I have. was hoping to find a used one from a savlage.
