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Front view of Lasco 1436-131 PVC reducing male adapter (1" x 3/4") showing threaded MNPT end and insert end on white background, close-up.

Lasco 1436-131 PVC Reducing Male Adapter 1" x 3/4"

Brand: PVC
Save 25%
$4.15
$3.11
SKU 1436131
In Stock (59)

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Lasco 1436-131 is a PVC reducing male adapter designed to join 1" nominal pipe to 3/4" insert connections. Engineered for cold potable water, irrigation, and general plumbing, this durable Schedule 40 fitting provides a secure MNPT x insert transition for reliable service.

  • Material: Durable PVC (poly) construction for corrosion resistance and long service life.
  • Connection: 1" MNPT x 3/4" insert — reduces from 1" nominal pipe to 3/4" insert pipe.
  • Standards: Manufactured to common industry standards for insert fittings and offered for potable water service (see product specs).
  • Schedule & Pressure: Schedule 40 / STD nominal rating suitable for typical irrigation and plumbing pressures; follow local code for maximum working pressure.
  • Use: Ideal for irrigation, residential plumbing, and water distribution where a threaded-to-insert transition is required.
  • Notes: Not for use with compressed air or gases; follow manufacturer installation instructions and local plumbing codes.

For installation, ensure clean, properly prepared pipe ends. Use the recommended insert method and solvent or mechanical fastening per code. Check compatibility with existing fittings and system materials before use. If you need additional specifications (pressure class, certifications, or dimensional details), consult the manufacturer data sheet or the product page for part 1436-131.

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Frequently Asked Questions

What sizes does this adapter connect?
This adapter transitions from a 1" nominal pipe (MNPT) to a 3/4" insert connection for compatible PVC pipe systems.
Is this fitting safe for potable water?
Yes. The Lasco 1436-131 is offered for domestic potable water service and is sold to meet common NSF standards.
Can I use this adapter with compressed air or gases?
No. Do not use PVC insert fittings with compressed air or gases; they are intended for water systems only.
How should I install the insert adapter?
Prepare clean pipe ends, insert pipe fully into the socket, and follow recommended solvent or mechanical joining practices per local code.