4", Sand, Flat Top Structural Foam Polyolefin Atrium Grate With UV Inhibitors, Open Surface Area Is 17.00 SQ IN And Has A Flow Rate of 22.27 GPM, Fits 4" Sewer & Drain Pipe & Fittings, 4" Corrugated Pipe, & 4 " Triple Wall Pipe.
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Model 78S
