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The NDS 50 is a 6-inch round drainage grate molded from structural foam polyolefin with UV inhibitors built into the material. It is designed for surface water collection in residential and light commercial drainage applications. The open surface area measures 9.11 square inches, and the rated flow capacity is 11.92 gallons per minute (GPM). Licensed plumbers, irrigation contractors, and drainage installers use this grate as the visible cap on catch basins and inline drain systems. The UV inhibitor package helps the green finish resist sun degradation in exposed outdoor installations.
This grate fits NDS Speed Basin catch basins and is compatible with 6-inch sewer drain pipe fittings and 6-inch corrugated pipe connections. It is rated for pedestrian, bicycle, and wheelchair traffic loads, making it suitable for walkways, patios, driveways, and accessible pathways where ADA-compliant surface drainage is required. The round profile seats directly into the Speed Basin collar without additional adapters in standard installations.
Fits NDS Speed Basin catch basins, 6-inch sewer drain pipe fittings, and 6-inch corrugated pipe as stated by the manufacturer.
Installation is typically performed by a licensed plumber or drainage contractor following local plumbing code requirements. Confirm the basin collar is fully seated and secured before placing the grate. No tools are required for grate removal during routine cleanout, but the basin itself should be installed per IPC guidelines for surface drainage. Inspect the grate seating surface for debris before each reinstallation to maintain rated flow performance.
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