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Graco 15T276 3/8 in Quick Release to 3/8-18 NPT SS Fitting

The **Graco 15T276 Coupler** gives you a stainless-steel ⅜″ quick-release to ⅜″ NPT connection — fast, strong, and reliable.

  • ⅜″ QR to ⅜″-18 NPT
  • Stainless-steel construction
  • High-pressure hose compatibility
  • Built for repeated use

$239.06
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Graco 15T276 Coupler – ⅜″ QR × ⅜″-18 NPT Stainless Steel

Compatible Machines

  • Graco fluid manifold systems using QR hose connections
  • Spray setups needing quick-connect and high-pressure durability
  • Portable and stationary units with standard ⅜-inch NPT ports

The **Graco 15T276 Coupler** offers a secure, stainless-steel ⅜″ quick-release to ⅜″ NPT interface, allowing fast, reliable changes of fluid lines under pressure.

Key Features

Part Number 15T276
Connection 1 ⅜″ Quick-Release
Connection 2 ⅜″-18 NPT Thread
Material Stainless steel
Typical Application High-pressure fluid line coupling

Installation & Usage Tips

  • Depressurize before connecting or disconnecting to avoid spurts.
  • Check the QR mechanism for debris to maintain a clean, secure connection.
  • Use thread sealant on the NPT side when installing.
  • Pull gently after coupling to make sure the QR has fully locked.
  • Inspect seals and QR components periodically and replace if worn.

Frequently Asked Questions

It is similar in function (⅜″ QR to ⅜″-18 NPT) but may use different internal seal or locking tolerances — check your system requirements.

It works with a wide variety of fluids, including solvent-based coatings, waterborne materials, and high-pressure spray media.

Make sure the QR part is clean, fully engage until you hear or feel a “click,” then gently pull to validate secure lock.

Yes — it’s built for durability, and with proper maintenance the QR mechanism holds up well under repeated use.

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