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Swiftech 1/2IN X 3/4IN LOK-SEAL™ Compression Fitting - Black

This product can only be exchanged or replaced with the exact same item.
Swiftech 1/2IN X 3/4IN LOK-SEAL™ Compression Fitting - Black - 1
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Swiftech 1/2IN X 3/4IN LOK-SEAL™ Compression Fitting - Black - 72220_l.jpg Customer Photos (0)

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Reg. Price: $8.99  CAD
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   Shipping Weight:   0.2 lbs
   Part #: 3-4X1-2-G1-4-CF-BK

Features    [ Edit | History ]

Product Description: 


½” x ¾” Lok-Seal™ Compression Fitting


Contents & Features


  • Blister pack of 1 fitting & collar
  • Material: brass
  • For ½” (13mm) ID x ¾” (19mm) OD tubing
  • Finish: high polish chrome plating or black paint
  • G 1/4" Male threads
  • Hex nut: Inch 15/16" - Metric 24mm
  • Collar: Inch 1" - Metric 25mm
  • Hi-flow design: .40" (10.2mm) bore ID x .47" (12mm) barb ID







Recommended use

  • Initial Tip:  If possible, attach the fittings to the cooling devices first! While not mandatory,  it is always preferable to fasten a fittings to a cooling device prior to installing the device inside the case. This will eliminate interference issues that may be encountered when working with tools inside of space constrained enclosures.
  • Fasten the fitting by hand until it mates with the surface of the cooling device. The amount of force necessary to screw the fittings down in “finger tight” mating position may vary from one device to another depending on various factors.  Users are advised to always visually check on the actual position of the fitting relative to the device surface rather than solely relying on feel. There should be little -not to exceed the thickness of a sheet of paper, or no visible gap between the fitting lower lip and the device surface. See the illustration below.


  • For complete long-term safety and leak-free operations, Swiftech® recommends that the fittings be locked in place using the recommended tools and that the torque levels specified below be applied:

Recommended Torque

Soft Material


Maximum (*)

Acetal (POM) and acrylics

1/4 of a turn after initial contact between mating surfaces

1/2 of a turn after initial contact between mating surfaces

Hard Materials


Copper, brass, aluminum

1/8 of a turn after initial contact between mating surfaces

(*) For full 5mm thread depth – please inspect the device threads prior to applying the maximum
recommended torque – when partial threads exist due to application necessity, only apply the
minimum torque.


Recommended Tools

A small adjustable wrench with jaw opening up to 1” (25.4mm)

may be used as a universal tool instead of the specific tools listed below

Specific tool sizes



Inch Tube ID x OD

Metric Tube OD xID

Fitting base hex:


Flat wrench or socket



Flat or adjustable wrench

?”x ½” – 13/10mm

Metric: 17mm - Inch: 11/16”

Metric: 18mm - Inch: adjustable wrench

?” x ?” – 16/10mm

Metric: 20mm - Inch: 13/16”

Metric: 21mm - Inch: adjustable wrench

½” x ¾” – 19/13mm

Metric: 24mm - Inch: 15/16”

Metric: 25mm - Inch: 1”


Swiftech 3-4X1-2-G1-4-CF-BK Customer Reviews

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding Swiftech 3-4X1-2-G1-4-CF-BK reviews.
Experience: 1 Months
 Verified Owner
Quality machined
Uniform specs
I bought eight of these for my new system. Before I was a ghetto watercooling builder using barbs and automotive hose clamps. They worked and worked well but I wanted a bit of bling. These delivered. I don't know what another reviewer here said about them not being black. I'll quote Spinal Tap: "How much more black could this be?"

I was worried about leaks using these but so far they are rock solid. The fit was uniform, if a little tight over the primoflex tubing. They just have the feel of a quality piece to them. I am worried that over time with the constant heat/cool cycles the fittings will leak. I doubt it very much but time will tell. Highly recommended.

Experience: 2 Months
 Verified Owner
- Quality build
- Nice glossy metallic finish
- Price ($8 per)
These look and feel of quality. If only they came in white or a UV blue!

Experience: 2 Days
 Verified Owner
cheaper then other fittings.
The description says black, but these are more of a gun metal colour then black.
I picked up 8 of these compression fittings to replace the bitspower barb fittings I am using at the moment. The description says black, but when I got them they are more of a gun metal colour then black. I wish I would have known this before purchasing them. I email Swiftech and they told me they had a recall on the black fitting since the paint was peeling and chipping off of them, and they replaced them with the gun metal colour. Also one of the fitting had the insert  for the silver chrome fittings, and they other 7 said black. I wouldn't recommend these if your looking for black fittings , I would choose bitspower instead.

Experience: 1 Weeks
 Verified Owner
Moderately small
Pure black
Easy to use
Much bigger than plain barbs
Scratch easily
Using 8 of these in my rig, easily attached to MCR320, MCR420, and my Apogee HD, although did not fit side-by-side in my MCRES-Micro Rev 2, but that was fine really, I just used the barbs that come with my Apogee HD so it still looked nice and sleek.

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Messages about Swiftech 1/2IN X 3/4IN LOK-SEAL™ Compression Fitting - Black

ETA (saunders1991- Jul 22, 13, 1 Replies) Read this message

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