BTW guys, I sell some of the best gasoline fuel line available. It doesn't stiffen over time and sun exposure. I am still using the first tank I outfitted with the stuff, 4 years and still flexible, inside the tank and out.

I also make and sell custom pipe couplers. These are made from ceramic fabric andI have yet to burn one through, 100's of flights later.

Contact me directly at my email address if interested