Skip to content
Top-down view of NDS 13S 4-inch sand-colored round drain grate showing slotted pattern and flat profile for surface drainage.

NDS 13S 4" Round Drain Grate — Sand Polyolefin, 4 in

Brand: NDS
Save 25%
$9.07
$6.80
SKU 13S
In Stock (10)

Notify me when back in stock

Durable, lightweight and UV-stabilized, the NDS 13S 4" round drain grate provides reliable surface drainage for patios, walkways, lawns and other light-traffic outdoor areas. Molded from structural foam polyolefin, this heel-proof grate resists rust, chemicals and sun exposure while fitting standard 4" drainage systems.

  • Compatibility: Designed to connect to 4" sewer and drain pipe and fittings, 4" corrugated pipe, and 4" triple-wall pipe for a soil-tight fit.
  • Material & Finish: Structural foam polyolefin (polypropylene family) in sand color with UV inhibitors to reduce fading and cracking.
  • Dimensions: Approximately 4-5/8" diameter and 1-1/2" height; open surface area ~3.85 sq in for efficient flow.
  • Performance: Heel-proof design suitable for pedestrians, bicycles and wheelchair traffic; flow capacity suitable for light stormwater runoff.
  • Durability: Chemical-resistant, rustproof and maintenance-free; lightweight for easy handling and installation.
  • Use Cases: Ideal for driveways, landscaped areas, patios, atriums and any location that requires shallow surface drainage.

This NDS grate is a proven alternative to heavier metal or concrete covers when a low-profile, corrosion-resistant solution is desired. Install into standard 4" drain assemblies for a secure fit; available in multiple colors to coordinate with landscape or hardscape finishes.

Reviews

Frequently Asked Questions

What pipe sizes does the NDS 13S fit?
The 13S is designed to connect to 4" sewer and drain pipe and fittings, 4" corrugated pipe, and 4" triple-wall pipe.
Is the grate safe for pedestrian and wheelchair traffic?
Yes. The heel-proof design and low profile make it suitable for pedestrians, bicycles and wheelchair traffic in light-duty areas.
What material is the grate made from and how durable is it?
Molded from structural foam polyolefin (polypropylene family) with UV inhibitors, it resists chemicals, rust and sun-related degradation.
How do I install the 13S round drain grate?
Set the grate into a compatible 4" drain assembly or fitting for a soil-tight fit; lightweight construction simplifies handling and placement.