The table shown summarizes the various standard and special catch basin frames and grates currently available. These catalog numbers are sorted based on their C dimension. The Grate Type column indicates the standard grate style for the size you have chosen. Other grates types may also be available for the catalog number you have selected. For verification of alternate grate styles, check with your Neenah representative or our main office in Neenah, Wisconsin. All catch basin castings are furnished with machined bearing surfaces, unless otherwise noted.