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Front view of NDS 41P8 4-inch white PVC MPT cleanout plug showing threaded male pipe connection and molded face.

NDS 41P8 4" PVC MPT Cleanout Plug for S&D Drain Systems

Brand: NDS
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$9.16
$6.87
SKU 41P8
In Stock (177)

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Durable 4" PVC MPT cleanout plug engineered for sewer and drain (S&D) systems. Designed to provide a removable access point for pipe maintenance and easy feeding of a plumbing snake into clogged drains.

  • Fits 4" FPT threaded connections: Male Pipe Thread (MPT) design screws securely into compatible drainage fittings.
  • Material & color: Molded PVC construction in white for corrosion resistance and long service life.
  • Compatible pipe types: Works with SDR-35, SDR-26, triple-wall and ASTM D-2729 sewer and drain pipe.
  • Dimensions: Nominal 4" size; approximately 4.45" outside diameter and 1.83" height for proper sealing in standard fittings.
  • Application & rating: For non-pressurized underground sewer and drainage applications; typical maximum working pressure of 5 psi; meets applicable ASTM standards.
  • Easy installation: Thread into the matching 4" female adapter or fitting for a leak-resistant, removable cleanout access point.

This NDS cleanout plug simplifies maintenance by providing a dependable, removable access point to S&D piping. Use it wherever a threaded 4" cleanout is required to access underground drain lines. Refer to the product literature and the NDS drainage catalog for specification sheets, installation guidance, and compatible fitting references.

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Frequently Asked Questions

What pipes and fittings does this plug fit?
Fits 4" female pipe thread (FPT) drainage fittings and is compatible with SDR‑35, SDR‑26, triple‑wall and ASTM D‑2729 pipe.
Is the plug suitable for pressurized systems?
No. The 41P8 is for non‑pressurized sewer and drainage use; typical maximum working pressure is about 5 psi.
How is the plug installed and removed for cleanout access?
Thread the MPT plug into the matching 4" FPT adapter or fitting by hand or with light tool assistance; remove to feed a plumbing snake or perform maintenance.