Rain Bird Square Catch Basins

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.