I was going to use an off-the-shelf cap set from the hardware store but I am going to head to the plumbing suppy store these week (Toto dealer) so I figured I'd pick them while I was there.
I have a friend that is a major TOTO dealer, he does not have the parts but was kind enough to provide the TOTO parts customer service number...1-888-295-8134
Hope this helps
Richard
I picked up a Drake tank today (scored an ADA bowl for $25.00 off Craigslist) and low-and-behold it come with new bowl caps.I figured they would be in with the bowl,not the tank but I am glad they did.