Review on H99RTAT Shallow Ceiling Housing - Air Tite by Trevor Bannister

I bought two 4 inch cases from Amazon because they were cheaper than the big department stores. I've read several complaints about clips being lousy in design. but I blame the consumers/installers for the lack of skill. The clips have a notch that allows you to depress a flathead screwdriver and secure the case in place. It takes a bit of muscle strength, and I could see why some people would do that. Because these cases are made from breathable material and are designed for use in wet conditions, the indentations on the clamps are padded, which might be another reason why people have problems.