I am running into a common problem here and I am wondering if there is an easier solution than the one I dread. There are a lot of horizontal units in this area with the old Rheem Evaporator boxes (RCAH-Z037S for example). We used to simply slide the old coil out and the new one in and go on. I am having trouble finding these slab coils and I am wondering if anyone knows where a 13 seer slab coil that will fit into these old boxes can be found. I think that Airco makes a slab coil, but the box size is different. Any advice will help.

I am fearing that us service techs are going to be sheet metal men soon!