I do not have the website available at this time. I did buy some excess marterial from Stuart for my OI33. The tool that worked the best for me was a pair of "ring" pliers. They are used to attach and remove locking rings. I got mine from Lowe's for $19. The greatest part is they have tiny rods to slide into the gasket material and you can reverse the pliers where squeezing the handle opens the jaws. Once you play with them in the store you'll say I got to have these!