Line-X Fort Worth was able to get my Roll & Lock tonneau cover in just a day or two, and then installed in just over an hour. I cannot tell that the cover leaks at all into the bed of my RAM 2500. I washed the truck at a commercial self-wash and detected no leaks. Since installation, the truck has been in several rainstorms, both while driving and stationary, and still no leaks. It was great working with them.