Yeah, the new answering system is a pain in the neck. Took me a while to actually get to one of the support people in Grand Island. Yes, they still make the liners with the safety ledge. There is no reason why they cannot give you the spec. The hopper is the same on three sides, but the angle to the shallow end is longer than the three sides. I am not able to get the spec for the next three weeks, but I have it. But the company should easily be able to get that.

Again, you have to tell them that you need to talk to technical support, not an account rep.