Automatic Litterbox Central

My husband lost the bathroom t-adapter during a move, and now that the company is out of business, I don't know what to do. We've tried every local plumbing supply store, and even tried to concoct our own contraption using various other plumbing supplies, but to no avail. Is there anyone out there who uses a laundry room hookup and would be willing to give me/ trade me/ sell me a bathroom adapter? Please . . . anyone?

If you have not found an adaptor, there is a person on eBay who claims to have some. His eBay name is: bendylan. I wish you luck.