Square Drainage Catch Basins

A Square Catch Basin is used to collect and discharge excess water in order to prevent potential damage to landscapes and property. This catch basin is available with two side openings and one optional opening at the bottom, which can be cut out along the perforations. Additionally, there are four small perforated drainage holes on the bottom of the basin which can be cut out to remove standing water in the sump. This basin is designed to accept the Square Flat and Square Atrium grates. Available in a 9", 12", and 18" models.


  • Manufactured from High‑Density Polyethylene (HDPE)
  • UV stabilized to protect from sun degradation
  • Use a 3" and 4" Basin Adapter to connect basin to 3" or 4" Corrugated Pipe and 3" or 4" Triple Wall Pipe
  • Use a 6" Basin Adapter to connect basin to 6" PVC Pipe (ASTM D2729 and ASTM D3034, SDR 35) and 6" Corrugated Pipe
  • Use a Basin Plug to plug unused outlets
  • Use 9" or 12" Square Basin Riser(s) to extend height of 9" and 12" Square Catch Basins by 6" in height, respectively
  • Includes a sump to allow sediment to settle in basin to minimize clogging of pipes
  • Includes four screw holes to enable grates to be secured to basin

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