MIFAB®’s T1400-CB620 Catch Basin shall be 19.7”(500mm) long with a 4” (100mm) internal width. The catch basin 18.8” deep. It is available with a 4” or 6” outlet. A sediment bucket is included with every basin. The catch basin is made from High Strength Glass Reinforced Polyester (GRP). Each catch basin comes with either ne edge rail or galvanized edge rail. The catch basins achieve Load Class A-E depending on the grate utilized.