Hot Tub Accessories Safe-T-Rail Black HTCPSTR-BLK / STR-BLK . The combination of water and slippery surfaces makes every spa a potential hazard. That's why we invented Safe-T-Rail. We believe this product has more upside sales potential than any other product we offer. Don't let a single customer-young or old-leave your showroom without considering a Safe-T-Rail for their spa.This rail maximizes safety and keeps slick surfaces from getting in the way of your customers' relaxation. This is for a Single Black Safe-T-Rail Ultra-sturdy, rust-free construction 5-minute installation - two composite mounting brackets with 8 screws each Foam grip for comfort and safety Mounts on most above-ground spas Made of rust-free black powder-coated aluminum 48" H with a 2-inch diameter pole