Merillat cabinet part where the drawer slider attaches to the back of the cabinet
Hi, we can certainly help with this. It appears you have an old Merillat drawer socket that is no longer made. Our 32-119 bracket pair should be a good replacement. I've had a ton of customers tell me it worked well for them. You'll need to install with screws since this doesn't have locking studs that go into the holes in the back like your current piece.
Well, these sockets generally plug into the back of the cabinet. It's possible yours is glued in, too. I've known Merillat cabinets to do that in some cases. That might get tricky. If it is glued in, you may want to check with a local hardware store to see if they have something you can use to safely get the socket out without damaging the back of the cabinet.