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White Lasco PVC 1-1/4-inch Schedule 40 male adapter showing the threaded MPT end and smooth slip/socket end at a slight angle, on white background.

Lasco 1-1/4" PVC Schedule 40 Male Adapter (MPT x Slip)

Brand: PVC
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$2.31
$1.73
SKU 436012
In Stock (297)

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Lasco 436-012 is a durable Schedule 40 PVC male adapter designed to transition pipe to a threaded connection. It pairs a smooth slip/socket end for solvent-welding to 1-1/4" PVC pipe with a male NPT (MPT/MNPT) threaded end for secure connections to female-threaded fittings. Engineered for irrigation, drainage, and many potable water applications, this adapter delivers reliable, corrosion-resistant service when installed per manufacturer instructions.

  • Size: 1-1/4" nominal pipe size; slip/socket end fits Schedule 40 PVC pipe.
  • Connection: Male NPT (threaded) x Slip/socket — easy solvent-weld installation on one end, threaded connection on the other.
  • Material: Rigid PVC (Type 1, cell classification 12454-B) for chemical and corrosion resistance.
  • Standards: Manufactured to Schedule 40/STD dimensions and meets industry standards for plastic piping components.
  • Applications: Suitable for irrigation, DWV and many potable water uses where Schedule 40 PVC is specified. Not intended for compressed air or gas service; verify local plumbing codes.

For best performance, use recommended PVC solvent and primer for the slip end and apply proper thread sealant on the threaded connection. Confirm compatibility with system pressure and temperature requirements before installation. If you need help selecting the right fitting for a project, contact a qualified plumbing professional or consult Lasco product documentation.

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Frequently Asked Questions

What size and thread type is this adapter?
This adapter is 1-1/4" nominal with a male NPT (MPT/MNPT) threaded end and a slip/socket end for Schedule 40 PVC pipe.
Can I use this adapter in potable water systems?
Yes. Lasco Schedule 40 PVC fittings are NSF/ANSI certified for potable water applications when installed correctly.
Is this adapter suitable for hot water or compressed air?
Do not use this fitting for compressed air or gas. Verify temperature and pressure limits; it is not recommended for hot water distribution.