1/4" MNPT x 1/4" Quick Connect Adapter

SKU: P-AIR-2173
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$3.30

The 1/4" MNPT x 1/4" Quick Connect Adapter is a durable and versatile fitting for various fluid and air handling applications. This straight adapter, part of the SMC KQ2H series, simplifies the process of connecting tubing to threaded ports.


The fitting features a 1/4" push-to-connect port on one end, which allows for fast, tool-free installation and removal of 1/4" O.D. tubing. The other end has a 1/4" Male NPT thread for a standard pipe connection. To ensure a secure and leak-proof seal on the threaded side, the fitting comes with a pre-applied thread sealant. This feature eliminates the need for manual application of thread tape or paste, saving time and preventing system contamination.


Constructed from brass, the fitting is built to be robust and corrosion-resistant. It can handle a maximum operating pressure of 145 PSI and a temperature range of 23°F to 140°F. Its design makes it compatible with a wide range of tubing materials, including FEP, nylon, polyurethane, and soft nylon.


This adapter is a reliable choice for air and non-potable water applications, providing a secure and efficient connection in various industrial and commercial settings.

  • Product Type: Push-Fit Adapter Fitting / Male Adapter
  • Manufacturer Part Number (MPN): KQ2H07-35AS
  • Manufacturer: SMC
  • Connection 1: 1/4" Male NPT
  • Connection 2: 1/4" Push-to-Connect Tube
  • Shape: Straight
  • Body Material: Brass
  • Max. Pressure: 145 PSI
  • Operating Temp. Range: 23°F to 140°F
  • Included: Pre-Applied Thread Sealant
  • Quick & Easy Installation: Push-to-connect design allows for fast, tool-free assembly.
  • Leak-Proof: Pre-applied thread sealant ensures a secure, reliable seal.
  • Durable Construction: Made from corrosion-resistant brass for long-lasting performance.
  • Versatile Application: Suitable for both pneumatic and non-potable water systems.
  • Compact Design: Small footprint for use in confined spaces.

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