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Top view of NDS 771 7-inch black square plastic drain grate showing grid pattern and square frame, designed for 6-inch Spee-D basins and 6 in. drain systems.

NDS 771 7 in Square Drain Grate, Black Plastic, Fits 6 in

Brand: NDS
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$23.52
$17.64
SKU 771
In Stock (3)

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Durable NDS 771 7 in. square drain grate engineered to protect lawns, patios and walkways by keeping leaves and debris out of 6 in. Spee-D® catch basins and 6 in. drain pipe while maintaining dependable flow.

  • Fits 6 in. Spee-D® catch basins, 6 in. sewer and drain pipe & fittings, and 6 in. single- or dual-wall corrugated pipe.
  • Material: UV-stabilized high-density polyethylene (HDPE) - lightweight, rustproof, chemical-resistant and maintenance-free.
  • Dimensions & performance: top 6-7/8 in. square; height 2-3/8 in.; open surface area 13.6 sq. in.; flow rate 42 GPM; grate openings 1/4 in.
  • Design: low-profile, removable grate provides easy access for cleaning and resists fading and cracking from sun exposure.
  • Applications: ideal for moderate drainage from lawns, landscaped areas, under downspouts, patios and walkways.

Part of NDS's drainage product line - a practical alternative to metal or concrete grates. See NDS technical literature for installation details, load classifications, and compatibility before specifying.

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Frequently Asked Questions

What does the NDS 771 grate fit?
Fits 6 in. Spee-D catch basins, 6 in. sewer and drain pipe, and 6 in. corrugated pipe.
How large is the grate and what is its flow capacity?
Top is 6-7/8 in. square, 2-3/8 in. high, 13.6 sq. in. open area and a flow rate of 42 GPM.
Is the grate weather- and UV-resistant?
Yes. Constructed from UV-stabilized plastic (HDPE) for UV resistance, rustproof performance and low maintenance.
How is the grate installed and maintained?
Low-profile, removable grate installs on basins or fittings and lifts out easily for periodic cleaning.