Harbor Freight Tools


Color-Coded Automotive Coupler and Plug Set, 14 Piece

Color-coded, anodized aluminum for easy coupler & plug matching. Easily distinguish between air lines.

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The MERLIN® color-coded system helps to efficiently match the same series couplers and plugs. Use the color-coded system to distinguish between air lines, such as high and low pressure or lubricated and non-lubricated lines. Scratch-resistant, anodized coating for optimal wear vs. traditional aluminum sleeves. Compatible with all standard MERLIN® and competitive T-Style (Automotive) couplers and plugs, as well as blue T-Style couplers and plugs in competitive color match systems.

  • T (Automotive) series
  • Air plugs up to 63% lighter*
  • Steel and aluminum construction
  • 300 PSI maximum
  • 1/4 in.-18 NPT
  • All male threads come with thread sealant pre-applied

Important Information

  • * Based on stated specification of standard product. All tool brands are the registered trademarks of their respective owners.

Flow rate
35 SCFM @ 95 PSI
(6) male plugs, (4) female plugs, (2) male couplers
steel, aluminum
Maximum pressure (PSI)
300 PSI
Shipping Weight
0.84 lb.
Thread size
1/4 in.-18 NPT
Note: Specifications are approximate and subject to change

We guarantee this product to be free from defects in materials and workmanship 90 days from the date of purchase. Limitations apply.