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White PVC Schedule 40 reducing male adapter (1-1/4" to 1"), showing MNPT threaded end and 1" socket, front angle on plain white background.

1-1/4" x 1" PVC Schedule 40 Male Reducing Adapter (MPT x Socket)

Brand: PVC
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$4.83
$3.62
SKU 436168
In Stock (24)

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Durable PVC Schedule 40 male reducing adapter designed to connect 1-1/4" pipe to 1" pipe with a threaded male end and smooth socket. Ideal for irrigation, potable water, and general plumbing where a secure, corrosion-resistant transition is needed.

  • Material: White PVC (Schedule 40) for long-term corrosion resistance and chemical compatibility.
  • Connection: Male threaded end (MPT/MNPT) to 1" slip socket for easy solvent-weld installation.
  • Standards: Manufactured to ASTM D2466 and NSF-certified for potable water applications.
  • Temperature & Pressure: Rated for typical service temperatures up to 140°F; suitable for most residential and commercial systems.
  • Application: Use to reduce from 1-1/4" to 1" pipe, join threaded fittings, or adapt piping in irrigation and DWV systems.

This part (SKU 436168) provides a reliable, low-maintenance connection where a threaded outlet must join a smaller-diameter pipe. Compatible with standard PVC solvent cement; follow local plumbing codes and use thread sealant on male threads where required.

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Frequently Asked Questions

What pipe sizes does this adapter connect and how?
Connects 1-1/4" to 1" nominal pipe. Threaded male end mates with standard MPT/MNPT fittings; socket accepts solvent-weld PVC.
Is this fitting rated for potable water and NSF standards?
Yes. Manufactured to ASTM D2466 and listed as NSF-certified for potable water; suitable for residential and commercial systems within its temperature rating.
How should I install the male threads and socket connection?
Solvent-weld the slip socket with PVC cement per manufacturer instructions; apply appropriate thread sealant or tape to male threads before assembly.