I just had my rubrail replace last year. I purchased it through Lewis Marine.
It was manufactured by Taco Marine and is very close to the origanial profile that was on my boat. This is a rigid product and dove the installer mad. I also chose to hold off on the install of the stainless inserts I plan to install them myself this year.
Attached is a link to the Taco web site for the profile.
http://66.98.194.54/tacomarine.com/c...rail_ss_insert
best of luck.