Skip to content
Top view of NDS 4" black round drain grate showing grate pattern, UV-stabilized polyolefin/HDPE construction, 1.5" profile and 3.85 sq. in. open area.

NDS 4" Round Drain Grate - 4" Black Polyolefin

Brand: NDS
Save 25%
$9.07
$6.80
SKU 11
In Stock (142)

Notify me when back in stock

The NDS 4" Round Drain Grate in black is a low-profile, heavy-duty drain cover designed to protect 4" drainage lines. UV-stabilized polyolefin/HDPE construction resists fading, cracking and corrosion while letting water pass through efficiently.

  • Fits: 4" sewer & drain pipe and fittings, 4" corrugated pipe, and 4" triple-wall pipe for a soil-tight fit.
  • Material: UV-stabilized polyolefin/HDPE—lightweight, chemical-resistant, and maintenance-free for outdoor use.
  • Dimensions: approximately 4-5/8" diameter x 1-1/2" height; top grate opening measures about 1/4".
  • Performance: open surface area ~3.85 sq. in. and ~11.78 GPM flow capacity under 1/2" head for reliable light-flow drainage.
  • Compliance & load: ADA-compliant/heel-proof design; suitable for Class A (light-duty) applications when installed properly.
  • Installation: removable design sits on top of drain pipes or fittings; works with standard adapters and can be secured or glued for a permanent fit.

Use this round grate to capture and redirect excess surface water from lawns, landscaped areas, patios, decks and near curbs or gutters. The slim profile and durable plastic construction make it easy to install, remove for cleaning and ideal for residential and light commercial drainage projects.

Reviews

Frequently Asked Questions

What pipe types does this 4" round grate fit?
Fits 4" sewer & drain pipe and fittings, 4" corrugated pipe, and 4" triple-wall pipe.
How durable is the polyolefin construction for outdoor use?
UV-stabilized polyolefin/HDPE resists fading and cracking; chemical-resistant and suited for outdoor light-duty use.
Is the grate ADA-compliant and safe for heels?
Yes. The 1/4" grate openings are ADA-compliant and designed to be heel-proof when installed correctly.
How do I clean or maintain this drain grate?
Remove the grate, clear leaves and debris, then rinse with water. No special tools are required for routine cleaning.