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Monsoon Free Center Compression Fittings, 1/2

Monsoon Free Center Compression Fittings, 1/2" x 3/4" Six Pack - Purple

Monsoon Free Center Compression Fittings, 1/2

Monsoon Free Center Compression Fittings, 1/2" x 3/4" Six Pack - Orange

Monsoon Free Center Compression Fittings, 1/2" x 3/4" Six Pack - Orange

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The best and ULTIMATE NEW Compression fitting on the market! For the Connoisseurs of Water Cooling Gear!

Tired of big ugly wrench flats on your compression fittings or tearing up your finger tips on knurling? Then Monsoon's sexy new Free Center Compression Fittings are just what you’re looking for.  The new patent pending Free Center Wrench design used to tighten the barb and the compression ring is perfect for tight spaces because it puts the wrench above the fitting plane giving you more room to maneuver than a conventional wrench. The small wrench notches on the compression ring are also a lot less noticeable than big ugly wrench flats or knurling on the side of a fitting which is normally the most visible portion when installed. The patent pending windows on the compression ring reduce weight and add some BLING to your rig by allowing the tube to show through and, in a pinch, provide extra grip if you need to use your fingers. The barb base also features a knurled surface to help the barb grip when installed.


  • Barb and compression ring machined entirely from brass.
  • The Free Center Wrench works on the barb and the compression ring for hassle free installation without tearing up your fingers. Don't be a tool!
  • Although we highly recommend using the Free Center Wrench, the barb can also be tightened with any coin 1.6mm thick and approximately 25mm in diameter—about the size of a US Quarter, and the machined windows on the compression ring can also be used to provide grip for finger tightening.
  •  Smaller visually and physically to make mounting in tight locations like CPU blocks easier. Outside diameter is just 24.4mm (.96 inches) and total height is just 16mm (.63 inches).
  • Knurled base on the barb to increase its grab when installed.
  • Available in 8 colors and finishes.
  • Includes a black O ring AND a color matched UV O ring—your choice. (Chrome, Matte Black, and Black Chrome get a second black O ring.
  • Available in singles or in money saving SIX PACKS that also include a free Free Center Wrench!

  • One Barb with radial cut notch for use with a Free Center Wrench (not included) or a coin.
  • One Compression Ring with Patent Pending Side Windows and Free Center Wrench Notches.
  • One black 2.4mm thick high quality silicone G1/4 BSPP O ring. 
  • One color matched UV 2.4mm thick high quality G1/4 BSPP O ring. (Additional O rings or different colors can be purchased separately in 10 packs).
  • 1/2"ID x 3/4" OD Fitting
Tubing Diagram
Intended Tubing Size:

OD: 19mm (3/4")
ID: 13mm (1/2")
Wall: 3mm (1/8")
1/2" (13mm) ID, 3/4" (19mm) OD, G 1/4 BSP threaded nozzle. Made of brass and includes compression ring.


Overall 92% "Just when we thought compression fittings couldn't get any better, we have something that not only looks better than your average chrome fitting, but is actually easier to use and install too."

From Bit-Tek.net, read more


"The monsoon compression fitting is the first to really change up and clean up the looks of compression fittings and they have also improved several areas of performance and improved the user experience while doing so. I recommend them very highly."

From Martin's Liquid Lab, read more here!

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