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Square Drain Grates

Prevent leaves and debris from entering and potentially clogging the pipeline as water drains with the square grate. Ideal for small lawns, landscaped areas, patios, and walkways. The square drain cover has increased open surface area and flow capacity compared to a round grate matching the pipe diameter. Built to stand up to the elements.

Where to Buy
NDS Green plastic 4 in. Square Grate fits 3 in. Drain Pipes & Fittings (NDS 1)
Where to Buy
NDS 6 in. Square Grate installed on 3 in. Sewer and Drain Pipe (NDS 5*, NDS 5)

Key Features

  • Ideal for small lawns, landscaped areas, patios, and walkways
  • Flared out design provides increased open surface area and flow capacity compared to round grate matching pipe diameter
  • Available in a variety of sizes, colors, and materials
  • Connects directly to drain pipes and fittings. Some models are compatible with the 6 in. round Spee-D® catch basin.

Applications

  • Protects the drainage system by blocking debris from entering and potentially clogging the pipeline
  • Ideal for small lawns, landscaped areas, patios, and walkways
  • Fits drain pipe or fitting with a soil-tight fit; some models fit 6 in. round Spee-D® catch basin

Installation & Maintenance

  • Works with connected drain pipe or fitting to capture and convey excess surface water for proper release downstream
  • Removable grate makes it easy to access pipe for cleaning and maintenance

Materials & Sustainability

  • Plastic grates are available in high-density polyethylene (HDPE), satin and polished brass, and cast iron
  • Collar made with polyvinyl chloride (PVC)
  • Low-profile adapter made with high-impact polystyrene (HIPS)
  • Plastic grates are made in the USA
  • Metal grates are imported

Product Models

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Shape

26 products

    Part Number
    (click for more info)    		 Description
    2 4 in. Square Grate, Connects to 3 in. Drain Pipes and Fittings, Black Plastic
    3 4 in. Square Grate, Connects to 3 in. Drain Pipes and Fittings, Gray Plastic
    1 4 in. Square Grate, Connects to 3 in. Drain Pipes and Fittings, Green Plastic
    913B 5 in. Square Grate with Collar, Connects to 3 in. Drain Pipes and 4 in. Fittings, Satin Brass and Plastic
    8 5 in. Square Grate, Connects to 4 in. Drain Pipes and Fittings, Black Plastic
    7 5 in. Square Grate, Connects to 4 in. Drain Pipes and Fittings, Green Plastic
    640 6 in. Square Grate with Low-Profile Adapter Drain, Connects to 3 in. and 4 in. Drain Pipes and Fittings, Black Plastic
    642 6 in. Square Grate with Low-Profile Adapter Drain, Connects to 3 in. and 4 in. Drain Pipes and Fittings, Gray Plastic
    641 6 in. Square Grate with Low-Profile Adapter Drain, Connects to 3 in. and 4 in. Drain Pipes and Fittings, Green Plastic
    920B 6 in. Square Grate with Low-Profile Adapter Drain, Connects to 3 in. and 4 in. Drain Pipes and Fittings, Satin Brass and Plastic
    921B 6 in. Square Grate with Low-Profile Adapter Drain, Connects to 6 in. Spee-D® Basin, 6 in. Drain Pipe and Fittings, Satin Brass and Plastic
    4 6 in. Square Grate, Connects to 3 in. and 4 in. Drain Pipes and Fittings, Black Plastic
    6 6 in. Square Grate, Connects to 3 in. and 4 in. Drain Pipes and Fittings, Gray Plastic
    5 6 in. Square Grate, Connects to 3 in. and 4 in. Drain Pipes and Fittings, Green Plastic
    06S 6 in. Square Grate, Connects to 3 in. and 4 in. Drain Pipes and Fittings, Sand Plastic
    771 7 in. Square Grate, Connects to 6 in. Spee-D® Basin, 6 in. Drain Pipes and Fittings, Black Plastic
    773 7 in. Square Grate, Connects to 6 in. Spee-D® Basin, 6 in. Drain Pipes and Fittings, Gray Plastic
    772 7 in. Square Grate, Connects to 6 in. Spee-D® Basin, 6 in. Drain Pipes and Fittings, Green Plastic
    773S 7 in. Square Grate, Connects to 6 in. Spee-D® Basin, 6 in. Drain Pipes and Fittings, Sand Plastic
    881 8 in. Square Grate, Connects to 6 in. Spee-D® Basin, 6 in. Drain Pipes and Fittings, Black Plastic
    882 8 in. Square Grate, Connects to 6 in. Spee-D® Basin, 6 in. Drain Pipes and Fittings, Green Plastic
    883S 8 in. Square Grate, Connects to 6 in. Spee-D® Basin, 6 in. Drain Pipes and Fittings, Sand Plastic
    970 9 in. Square Grate, Connects to 6 in. Spee-D® Basin, 6 in. Drain Pipes and Fittings, Black Plastic
    960 9 in. Square Grate, Connects to 6 in. Spee-D® Basin, 6 in. Drain Pipes and Fittings, Gray Plastic
    950 9 in. Square Grate, Connects to 6 in. Spee-D® Basin, 6 in. Drain Pipes and Fittings, Green Plastic
    970S 9 in. Square Grate, Connects to 6 in. Spee-D® Basin, 6 in. Drain Pipes and Fittings, Sand Plastic

    Specifications & Documents