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Red brass G1/4 dual male coupler, diamond knurled, 18.16mm wide by 20.00mm high

Bykski

Bykski G1/4 Dual Male Extension Coupler Red 18.16mm 20.00mm

SKU CH-N5DT-8G3J9

Connects two female G1/4 ports in a custom loop, machined from brass with diamond knurling at 18.16 mm wide and 20.00 mm tall

  • Product typeCPU Block
  • Product colorRed
  • Adapts female to male G1/4 fittings for seamless loop integration
  • Durable brass construction with diamond knurled grip for secure handling
  • Compact 20.00mm height and 18.16mm width fits tight spaces
  • Essential component for building or upgrading custom water cooling loops
  • Designed for confident self-installation in custom cooling systems

G1/4 Dual Male Extension Coupler

The Bykski G1/4 Dual Male Extension Coupler connects two female G1/4 threaded fittings in a custom water-cooling loop. It is intended for builders assembling or modifying their own liquid-cooling systems. The red anodised finish adds a colour accent to the loop.

Brass construction with diamond knurling

The coupler is machined from brass for corrosion resistance and structural rigidity. A diamond knurled surface provides extra grip when tightening by hand or with tools. Its compact dimensions of 20.00mm height and 18.16mm width keep the profile low inside crowded cases.

Verify thread compatibility and clearance

Confirm that every component you plan to join uses standard G1/4 threads before ordering. Measure the available space between the two female ports to ensure the 20.00mm installed height will fit without stress on adjacent fittings or tubing. This part is designed for self-installation and carries no liability for damage caused by misuse or incompatible hardware.

How it compares

Measured against everything we stock in Heatsinks & Water Blocks, at today’s prices. Recalculated every night.

Price $16.99
Typical for this category: the median of 609 items is $15.99.

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Specifications

Product
Product typeCPU Block
Product colorRed

Questions about this item

What thread standard does the Bykski dual male coupler use, and what does that limit in practice?

It uses G1/4 threads, so it only connects to other G1/4 female fittings in a water cooling loop.

What clearance does the 20.00 mm height and 18.16 mm width require inside the case?

You need at least 20.00 mm of vertical space and an 18.16 mm wide opening for the brass body to sit without fouling nearby components.

How is the coupler installed, and what step do builders often miss?

Screw each male end into a G1/4 female port by hand, then use the diamond knurled grip for a final quarter-turn; the common mistake is skipping that last snug turn, which can leave a slow leak.

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