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Two small black cylindrical G1/4 plugs with coin-slot heads and knurled sides, shown with O-rings

greenDracaena

greenDracaena D-Stop-Black-2 G1/4" Brass/Copper Plug Fitting 2-Pack

SKU CH-QD3C-YGCKZ

Two G1/4" brass and copper plugs with O-rings seal liquid-cooling ports tool-free

  • Radiator size2 pcs
  • Fan size2 pcs
  • Fan dimensions0.7 in x 0.7 in x 0.39 in
  • LED lightingBlack
  • Product colorBlack
  • In the boxO-rings
  • Corrosion-resistant plated copper ensures long service life
  • 18 mm G1/4" thread seals liquid securely in the loop
  • Non-slip texture and minus groove allow tool-free hand tightening
  • Included o-ring gaskets create an airtight seal against leaks and dust
  • Two-piece pack weighs only 1.13 oz for minimal system load

Two G1/4 Plugs for Custom Loops

This two-pack supplies G1/4 threaded stop plugs finished in black brass and copper for sealing unused ports in a custom liquid-cooling loop. The fittings suit builders completing a new build or reconfiguring an existing system who need reliable blanking plugs.

Hand-Tight Coin Slot and O-Rings

Each plug includes a rubber O-ring and a minus-groove coin slot on the 18 mm head, allowing tool-free installation by hand or with a coin. The non-slip texture helps achieve an airtight seal that blocks leaks, oxidation and dust ingress.

Check Port Thread and Clearance

Verify that every port you intend to close uses a G1/4 thread and that the .7 in by .39 in plug body fits the available space around adjacent fittings or components. The pack contains only two plugs, so count open ports before ordering.

How it compares

Measured against everything we stock in Liquid Cooling & AIO Coolers, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 95% of the 1,190 comparable items (median $71.99).

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Specifications

Product
Brand nameGreenDracaena
Product lineBlack
Model nameD-Stop-Black-2
Part numberD-Stop-Black-2
Product colorBlack
Size & build
Radiator size2 pcs
Fan size2 pcs
Fan dimensions0.7 in x 0.7 in x 0.39 in
In the box
In the boxO-rings
More details
LED lightingBlack

Questions about this item

Will the O-rings on these G1/4" plugs need replacing over time?

The pack includes O-rings for each plug; rubber gaskets can harden after prolonged exposure to coolant and heat, so plan to swap them during routine loop maintenance.

What is the first limit reached when these brass plugs stay under constant system pressure?

The 18 mm diameter copper body with plated finish resists corrosion, making the O-ring seal the practical limit before the metal fitting itself degrades.

How much heat do these 0.7 x 0.39 in plugs add to a loop running all day?

The solid brass and copper construction adds negligible thermal load; the fittings simply conduct ambient loop temperature without generating measurable heat.

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