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NDS Schedule 40 3-1/2 in. Hub in. PVC 3.75 in. Downspout Adapter

NDS Schedule 40 3-1/2 in. Hub in. PVC 3.75 in. Downspout Adapter

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NDS Schedule 40 3-1/2 in Hub to 3.75 in Downspout AdapterTurn rainwater runoff into a reliable, buried drainage pathway with this NDS PVC Schedule 40 downspout adapter. engineered…

Nds MPN 9P07
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About Product Overview

NDS Schedule 40 3-1/2 in Hub to 3.75 in Downspout Adapter

Turn rainwater runoff into a reliable, buried drainage pathway with this NDS PVC Schedule 40 downspout adapter. engineered for DWV applications, it provides a precise, leak-resistant transition from a 3-1/2 inch hub to a 3.75 inch downspout, making underground drainage projects cleaner and more durable.

  • Material and construction: Schedule 40 PVC delivers rigid, weather-resistant performance suitable for outdoor and underground use.
  • Underground rated: Built to withstand burial conditions, enabling secure in-ground connections without compromise.
  • Connector specifics: End 1 diameter 3-1/2 inches with a hub configuration to match standard piping, paired with a 3.75 inch downspout transition for a streamlined install.
  • Specifications at a glance: Length 3.75 inches; Maximum Pressure 5; Application: DWV; Brand: NDS; Lead Content: Lead-Free.
  • Certifications and listings: IAPMO Certified: No; NSF Listed: No; Packaging: Carded; Number in Package: 1.

Why this adapter stands out

Unlike generic fittings, this NDS adapter is purpose-built for underground drainage transitions, delivering a smooth interior surface that minimizes flow resistance and reduces blockage risk. The Schedule 40 PVC design aligns with standard piping systems, ensuring compatibility with other components in your drainage layout. Its 3-1/2 inch hub-to-3.75 inch downspout configuration is ideal for projects where a secure, buried connection is required without compromising water management performance.

Ideal use cases

  • Connecting a 3-1/2 inch hub inlet to a larger 3.75 inch downspout in buried drainage paths.
  • DWV installations where a durable, underground-rated adapter is needed to route water away from foundations and landscaping.
  • Residential and light commercial drainage projects that require a reliable, lead-free transition piece.

Practical installation tips

  • Dry-fit first to confirm alignment between the hub piping and the 3.75 inch downspout before applying cement.
  • Use PVC solvent cement rated for Schedule 40 PVC to ensure a tight, long-lasting bond.
  • Prepare the underground trench per local codes, backfill with suitable material, and compact to prevent movement that could loosen the connection.
  • Inspect for any gaps or misalignment after curing, then test with a small water flow to verify a leak-free seal.

The Details Specifications

Brand Nds
SKU 4020596
UPC 052063009070
Unit 0
Case Pack Quantity 40 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 4 × 4 × 4
Weight 0 lbs
Cubic Feet 0.04114 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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