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Fits 4" Sewer and Drain Pipe & Fittings, 4" Corrugated Pipe, and 4" Triple Wall Pipe. If installaing in a flower bed, use an atrium grate to avoid clogging debris. Atrium grates should be used in areas where there is no traffic.
** BEFORE installing a drainage system, please check your local codes and regulations and install accordingly. **
Flat Top Structural Foam Polyolefin Atrium Grate with UV inhibitor. Open surface area 17.00 square inches. 22.27 GPM.
To learn more about general drainage, please watch the video below: