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White Lasco 439-251 PVC threaded reducer bushing, 2-inch male threads to 1-1/2-inch female threads, Schedule 40 fitting, front angle on white background, clear thread detail.

Lasco 439-251 Threaded Reducer Bushing 2" x 1-1/2" PVC

Brand: PVC
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$5.66
$4.24
SKU 439251
In Stock (31)

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Durable PVC threaded reducer bushing designed to transition from 2" male threads to 1-1/2" female threads in standard Schedule 40 plumbing. Manufactured to industry standards for potable water and pool/irrigation systems, this fitting provides a compact, leak-resistant connection where a reduced port size is required.

  • Material: Durable PVC (Schedule 40) formulated for plumbing and pool applications.
  • Size & Threads: 2" MPT (male) x 1-1/2" FPT (female) — reduces pipe size without adapters.
  • Standards: Conforms to ASTM D2466; certified to NSF-14 and NSF-61 for potable water.
  • Pressure & Temperature: Rated to 280 PSI maximum working pressure; recommended service temperature up to 140°F (32°–140°F).
  • Construction & Finish: White Schedule 40 PVC, molded for consistent threads and reliable sealing with compatible thread sealant or tape.
  • Applications: Suitable for pool equipment, irrigation, and general potable water plumbing; not for compressed air or gases.

Install by applying approved thread sealant or PTFE tape to the male threads and hand-tightening followed by a short turn with a wrench—avoid over-tightening to prevent stress on the PVC. This compact reducer bushing saves space compared with bulkier adaptors and simplifies repairs or modifications where a smaller branch is required. Manufacturer part 439-251 is commonly stocked for fast replacement in pool and irrigation service kits.

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Frequently Asked Questions

What size and thread types does this reducer bushing use?
The Lasco 439-251 reduces from 2" MPT (male) to 1-1/2" FPT (female); it uses standard NPT/MPT threaded connections.
Is this fitting safe for potable water systems?
Yes. It is molded from Schedule 40 PVC and meets NSF-14 and NSF-61 standards for potable water applications.
What are the pressure and temperature limits for this part?
Rated to a maximum working pressure of about 280 PSI and a recommended service temperature up to 140°F (32°–140°F).
Can I use this reducer for compressed air or hot water lines?
No. Lasco advises against using PVC fittings with compressed air or for hot water systems that exceed the recommended temperature range.