This is a very nice and sturdy box. The electrical component is very good. My two problems with the install: 1) I needed to use the rear knock out for my wire. I knocked the center out easily but I could not knock out the outside ring for a 3/4 cable protector. Although the side knockouts had the outside ring for a cable protector, I don't think that the rear did. I had to cut and take time to widen the rear hole to 3/4 inch. 2) The instructions tell you how tight to tighten the connections. While attaching my ground wires to the box, the soldered ground lug fell off. More time spent to drill a hole and reconnect with nut and bolt. Over all, it is a good product and now that it is installed, it should be good to go for years.