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Flair-It 3/8 in. PEX X 3/8 in. D MPT Plastic Male Adapter

Flair-It 3/8 in. PEX x 3/8 in. D MPT Plastic Male Adapter is a compact, lead-free connector designed to seamlessly bridge 3/8" PEX tubing to a 3/8" male pipe thread. Crafted from d…

Flair-It MPN 16850
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Typical store price: low $2.99, average $3.99
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About Product Overview

Flair-It 3/8 in. PEX x 3/8 in. D MPT Plastic Male Adapter is a compact, lead-free connector designed to seamlessly bridge 3/8" PEX tubing to a 3/8" male pipe thread. Crafted from durable plastic, this adapter delivers a reliable, corrosion-resistant transition for clean, efficient plumbing runs—especially in tight spaces where every inch counts.

  • End connections: one end accepts 3/8" PEX tubing, the other end features a 3/8" D MPT (male pipe thread) for easy mating with compatible female threaded fittings.
  • Material: lead-free plastic, offering a lightweight, corrosion-resistant alternative to metal fittings while maintaining robust performance for plumbing projects.
  • Certification: ANSI certified, ensuring compliance with established standards for quality and safety in potable-water installations.
  • Package quantity: 1 piece per package, ready to integrate into your project without extra bulk.
  • Connection type: features a threaded MPT end for traditional threaded connections; not a push-to-connect fitting.
  • Brand: part of the Flair-It family, trusted for dependable PEX solutions with practical versatility.

This adapter solves the common challenge of tying flexible PEX runs to components that use male pipe threads. It’s ideal when you need to:

  • connect PEX tubing to a valve, faucet, or appliance that has a 3/8" male threaded inlet,
  • extend a PEX line to a threaded junction in tight or cluttered spaces where standard fittings won’t fit,
  • upgrade or retrofit existing PEX networks with a simple, reliable threaded transition,
  • carry out quick, maintenance-friendly repairs in residential and light commercial plumbing projects.

Why choose this Flair-It adapter? The lead-free plastic construction offers corrosion resistance and ease of handling, reducing weight without sacrificing reliability. ANSI certification provides confidence in compatibility with standard installation practices, while the 3/8" PEX to 3/8" MPT configuration covers a common, practical size for small-diameter plumbing runs. With a single-piece package, you can keep your job organized and on schedule.

Installation tips (quick guidelines built from real-world usage):

  • Ensure threads are clean and dry before assembly.
  • Apply an appropriate thread sealant compatible with plastic and metal threads, or use PTFE tape if recommended for your specific application.
  • Hand-tighten the MPT end, then snug with a wrench to seal without over-tightening and risking damage to the plastic body.
  • Verify the PEX end is fully seated and not kinked before final assembly.

Designed for practical, budget-conscious installations, this Flair-It adapter helps you finish plumbing runs with a clean, dependable transition from PEX to threaded connections. It’s an excellent choice for DIYers and professionals who value straightforward, reliable performance in everyday water-line applications.

The Details Specifications

Brand Flair-It
SKU 4165908
UPC 742979168502
Unit 0
Case Pack Quantity 10 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 2 × 1 × 1
Weight 0 lbs
Cubic Feet 0.00324 ft³
Country of Origin CHILE
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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