Gann Industrial Supplies, Inc.
312 South Miami Blvd.
Durham, NC
800-969-4266
Take Hwy 70 to Durham,
When you see the brick "Welcome to Durham" sign take the exit which veers to the left.
This is Miami Blvd.
First bldg on the left is Gann.
The pipe only comes in 20 foot sections.
If you only want to carry one sail, hiking stick and boom, a ten inch diameter pipe is big enough.
A twelve inch can carry two sails, two booms, hiking sticks, tiller connector bars, etc.
The plastic end caps can cost $15-$20 a piece.
I made hatches for Jonathans' tube with plywood.
Give me a call if you need any help.