Product Info Catalog Plumbing Pipe & Fittings Drainage 3" Round Grate Sand 3" Round Grate Sand Request a Quote UPC: 52063310169 SKU: 182937 Model Number: 16S 3", Sand, Round Structural Foam Polyolefin Grate With UV Inhibitors, Open Surface Is 2.60 SQ IN And Has A Flow Rate Of 3.41 GPM, Fits 3" Sewer & Drain Pipe & Fittings, 3" Corrugated Pipe, & 3" Triple Wall Pipe, Recommended For Pedestrians, Bicycles, & Wheel Chair Traffic.