MIFAB®’s T3000-CB1220 Catch Basin shall be 19.7”(500mm) long with a 12” (300mm) internal width. Catch basin with optional extension is 40” deep. It is available with a 6” or 8” outlet. A sediment bucket is included with every basin. The catch basin is made from polymer concrete. Each catch basin comes with either no edge rail or galvanized edge rail. The catch basins achieve Load Class A-E depending on the grate utilized.