Taco recommends for SeaCraft Boats is #V21-9613BKA and the SS insert is #S11-4510.
I just installed it on my 23 CC turned out looking Very Good. You can look at the video installations of these on Youtub. There are a number of instillation videos there pull up the one for aluminum rub rails if I remember correctly at the end will show Rigid with the SS insert installation.
I got my Rub Rail from a company called Railings Unlimited in Fort Laud. There phone # is 954-764-2784 cost me $400. for 60’ of both materials plus two end caps. You will need approx. 200 #8 1” Philips flat tapering screws.
FellowShip
………………………….
Just for the Grins
Official Antique Classic SeaCraft Owner