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Front view of NDS 9P09 white PVC downspout adapter showing centered hub end and downspout connection, nominal 3x4x4.

NDS 9P09 PVC Downspout Adapter, 3 x 4 x 4 Schedule 40, White

Brand: NDS
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$24.68
$18.51
SKU 9P09
In Stock (15)

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Connect roof downspouts to 4" sewer and drain pipe with the NDS 9P09 PVC downspout adapter. Designed for reliable drainage performance, this centered adapter joins 3" x 4" downspouts to a 4" Schedule 40 hub for a secure, solvent-weld connection. Molded from durable PVC with a white finish, the 9P09 is built for long service life in residential and light commercial drainage systems.

  • Manufacturer: NDS (part number 9P09)
  • Material: Schedule 40 PVC, corrosion-resistant
  • Nominal size: 3 x 4 x 4 (downspout x outlet x hub)
  • End style: Downspout hub (centered)
  • Color: White finish for discreet installation
  • Installation: Solvent-weld to Schedule 40 DWV hub for a leak-resistant joint
  • Warranty: Lifetime limited manufacturer warranty

This adapter is a simple, low-profile solution for routing downspout runoff into standard 4" drain and sewer piping. Use with compatible PVC or corrugated drainage systems and follow local plumbing codes and NDS installation instructions. Refer to the NDS drainage catalog and product literature for technical drawings and installation guidance.

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Frequently Asked Questions

What material is the NDS 9P09 downspout adapter made of?
The 9P09 is molded from Schedule 40 PVC for corrosion-resistant, long-lasting drainage performance.
What pipe sizes and connections does this adapter fit?
Nominal 3 x 4 x 4 — connects 3" or 4" downspouts to a 4" Schedule 40 hub for standard sewer and drain pipe.
How is the 9P09 installed?
Install by solvent-welding the adapter to the Schedule 40 hub per local plumbing codes and NDS installation instructions.
Is there a warranty for this NDS adapter?
Yes. The 9P09 is covered by a lifetime limited manufacturer warranty for defects in materials and workmanship.