Twenty years ago, I picked up an open box tank with a toilet from a big box.Lo and behold ..on the cheap side of the faucets was a box that looked familiar..beat up , opened ...It was my returned ..,1675 Cadet.
I assembled the toilet, and water started weeping out of the porous casting on the porcelain tank.
When I returned the tank, I wanted them to mark it defective with a black marker. That is what the plumbing supply stores do. They make "SURE" it doesn't get sold again.
The guy that took it back, said marking it was someone else's job.
You know what that means. It was going back up for sale to the next customer that would give it a try.
They may have been able to get their money from it, selling until someone kept it, but they lost me with that attitude.
I still buy tools there, in unopened boxes.