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Black NDS FWSD69 surface drain inlet with 6-inch round plastic grate shown from above, showing grate pattern and inlet opening for 4" pipe connections.

NDS FWSD69 4" Sch 40 Drain Inlet with 6" Grate

Brand: NDS
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$102.46
$76.84
SKU FWSD69

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The NDS FWSD69 4" Sch. 40 Surface Drain Inlet is engineered to capture and direct surface runoff into Flo‑Well dry wells or standard 4" Sch. 40 PVC systems. Built for landscape and light pedestrian applications, it prevents standing water around yards, walkways, and curbs while offering easy, maintenance‑free operation.

  • Durable construction: Structural foam polyolefin (polypropylene) body and 6" grate with UV inhibitors for outdoor longevity.
  • High-flow grate: 6" round grate provides 8.22 sq. in. open area and approximately 25.15 GPM flow capacity to quickly move surface water.
  • Compact dimensions: 6" diameter at the inlet, 9" overall height; 4.5" outside diameter fits standard 4" Sch. 40 PVC fittings.
  • System compatibility: Designed to fit NDS Flo‑Well covers (#FWAS24 and #FWAS24C) or install directly into 4" Sch. 40 PVC plumbing.
  • Safety & rating: ADA compliant with NDS Class A load rating suitable for pedestrian, bicycle and wheelchair traffic.
  • Finish & color: Black, non‑corrosive plastic grate and inlet—resists rust, pitting and fading.

Easy to install and low maintenance, the FWSD69 reduces erosion and standing water without gravel backfill when used with the Flo‑Well system. For detailed dimensions, installation steps and performance data, consult the Flo‑Well product literature and installation guides supplied by NDS.

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Frequently Asked Questions

What materials is this drain inlet made from?
The FWSD69 is molded from structural foam polyolefin (polypropylene) with UV inhibitors for long‑term outdoor durability.
Will this inlet fit standard 4" Sch. 40 PVC pipe?
Yes. The outlet measures ~4.5" OD and is designed to accept 4" Sch. 40 PVC fittings for direct connection.
Is the grate ADA compliant and suitable for pedestrian traffic?
Yes. The 6" grate is ADA compliant and rated NDS Class A for pedestrian, bicycle and wheelchair traffic.