MIFAB®’s T1500-CB620 Catch Basin shall be 19.7”(500mm) long with a 4” (100mm) internal width. The catch basin 23.6” 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 Polymer Concrete. Each channel comes with a Galvanized edge rail or Stainless steel edge rail. The catch basins achieve Load Class A-E depending on the grate utilized. T1500-CB620-4 is only Class F.