18" Catch basins collect debris and prevent the clogging of the pipeline. The grates are also available in a variety of patterns and colors to blend in with the surrounding areas. Typically used in areas where water buildup occurs or also to catch and divert water to water-safe areas away from structures, erosion-prone landscapes, and poor drainage areas. At Drainage Connect, we carry a wide variety of catch basins, If you don't see it on our site, please use our contact form. Orders of $1000 or more are eligible for job quotes.