12" PVC Pipe. Pipe is affordable, endcaps are expensive but you can make your own with plywood...

--brendan

:: I'm looking for a fiberglass trailer box (or two) that
:: will fit a rolled #1 and main in it. Tired of hauling
:: the sails in and out of the boat when I'm not actively
:: using them. If anyone has a source for these, let me
:: know!
::
:: Thanks,

:: Dave