18″ Fiberglass micro mesh grate with 3/4″ x 3/4″ openings for flow area. Available in dark gray. Designed to fit NDS® 1800 Series catch basins and others. Grates are chemically resistant, rustproof and maintenance-free. Rated as a Load Class A.
Actual Dimensions: 16-3/4″ x 16-3/4″ x 1″
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