Review on Dustproof Waterproof 🔒 Universal Electrical Enclosure 125X86X62Mm by Thomas Chalecki

knockout holes are not 1/2 inch but could be forced to screw plugs into required holes. It's hard, but it worked. Couplings are stuck. They should have been thicker plastic and threaded. I don't know if the 3/4 knockout holes were any better. The good thing is that they are waterproof although they have a spot where you can open the drain. I would buy it again if I use 1/4. Knock out 2 inches. I use the word "knock out" but I actually used 1/2 inch. Hole cutter, not a hole saw.