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The NDS 14 is a 3-inch round drain grate molded from structural foam polyolefin with built-in UV inhibitors. It covers 3-inch sewer drain pipe fittings, corrugated pipe, and triple wall pipe in surface drainage applications. The open grate area measures 2.60 square inches, delivering a flow rate of 3.41 GPM. The black finish holds color under prolonged sun exposure without a separate coating. Licensed plumbers and drainage contractors install this grate as the final surface component of a storm or site drainage assembly.
This grate is rated for pedestrian, bicycle, and wheelchair traffic, making it suitable for walkways, driveways, patios, and accessible routes where ADA-compatible surface drainage is required. Its round profile fits flush over standard 3-inch drainage pipe terminations in both residential and light commercial installations. The structural foam construction resists impact and deformation under repeated rolling and foot loads.
Designed to fit 3-inch sewer drain pipe fittings, 3-inch corrugated pipe, and 3-inch triple wall pipe as stated by the manufacturer.
A licensed plumber or drainage contractor typically installs this grate as the final cap on a 3-inch underground drainage line. Confirm the pipe end is flush, clean, and free of burrs before seating the grate. No tools are required for placement, but verify the grate sits level to prevent rocking under traffic loads. Follow local plumbing and site drainage codes for proper pipe depth and bedding before finishing the surface.
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