ACO introduced the concept of linear surface drainage systems to North America over 25 years ago. During that time we have continued to innovate with both the design and production of aging in place shower drains and barrier free drains. Below you will find installation tips on installing linear trench style drains and our classic 4 inch square point drains. Our uniquely styled stainless steel shower grates provide an economical, easy to install solution for your spa, locker room or shower. We are here to help, all you have to do is askaco.com!