描述
Water cooling is a plumbing discipline wearing a computer's clothes. The radiator takes the credit and the pump takes the blame, but the joint is what decides whether a loop survives its second year. The Meridian Four is a set of four rotary fittings built for the joints that have to move before they can seal.
Each piece uses the G1/4 thread standard that every block, radiator and reservoir in a loop already speaks, with a rotatable collar so the fitting can be oriented after it is tightened rather than before. Five geometries cover the practical cases, GD-SK, GD-X, GD-90, GD-45 and GD-FT14, giving straight, offset and angled paths around memory, motherboard heatsinks and the awkward corner where a tube run has to change plane. Bodies are machined aluminium, finished in silver or black, with no RGB and no lighting hardware inside them to fail.
A four-piece lot is the right quantity for a single build: enough to solve the two or three joints that always resist a clean tube path, with spares left for the revision that follows the first leak test. Nothing here is decorative. The fittings hold torque, they do not introduce a second leak path into a loop that already has enough, and they can be repositioned during a rebuild without being replaced.
A loop leaks at its joints, or it does not leak at all. There is no third outcome.
Key Features
- ✦ G1/4 thread standard, compatible with common blocks and radiators
- ✦ Rotary collar for orientation after tightening
- ✦ Five geometries: GD-SK, GD-X, GD-90, GD-45, GD-FT14
- ✦ Machined aluminium body, silver or black finish
- ✦ No RGB and no integrated lighting hardware
- ✦ Four fittings per lot
- ✦ Straight, offset and angled routing options
- ✦ Suitable for hardline and soft tube loops
Technical Specifications
- BrandBykski
- SeriesGranzon
- TypeFittings
- ThreadG1/4
- MaterialAluminium
- Model numbersGD-SK, GD-X, GD-90, GD-45, GD-FT14
- Finish optionsSilver, black
- Quantity4 pieces per lot
- RGB supportNo RGB
- RotationRotary, re-orientable
- SealingO-ring seal at the thread face
Where It Belongs
The Meridian Four is for the builder assembling a custom loop in a mid-tower case, where the two hardest joints are always the same: the run from the CPU block over the memory towards the top radiator, and the return from the front radiator to the pump reservoir. It suits a first hardline build that needs angled adapters to keep tube bends clean, a maintenance rebuild that has to add a drain port, and a loop that has been moved between cases twice and needs the fittings to come apart and go back together without losing their seal.
Frequently Asked Questions
Q: Do these fit any G1/4 component?
Yes. G1/4 is the standard thread used by the overwhelming majority of water cooling blocks, radiators, pumps, reservoirs and fittings, so these units thread into the ports those components already provide.
Q: What is the difference between the five models?
GD-SK and GD-X are straight and extended straight adapters, GD-90 and GD-45 are angled adapters, and GD-FT14 is a filter or pass-through style fitting. The choice depends on the angle a tube run needs to take at a given port, not on performance.
Q: Are these brass or aluminium?
The bodies are machined aluminium. In a loop that also contains copper or brass components, a corrosion inhibitor is recommended, which is standard practice in mixed-metal water cooling.
Q: Are O-rings included?
Yes. Each fitting carries its own O-ring seal at the thread face, which is what provides the seal against the port, so no thread tape or sealant is required.
Q: Can they be reused after a rebuild?
Yes, provided the O-rings are inspected and replaced if they show compression marks. The thread and the rotary collar are designed to be assembled and disassembled more than once.
Q: How many fittings does a typical build need?
A single radiator, block and pump loop usually needs four to six. A four-piece lot covers the majority of single-loop builds, with the remainder added when a drain line or a second radiator is introduced.
Q: Do the fittings come with thread sealant?
No sealant is needed and none should be added. The seal is made by the O-ring where the fitting meets the port, and thread tape can actually prevent the fitting from seating fully, which is the opposite of what it is intended to achieve.
Q: Will they work with soft tubing as well as hardline?
Yes. G1/4 is a port standard rather than a tube standard, so the fittings accept whichever compression or barbed hardware is used by either tube type, as long as that hardware is threaded for the same port.
Q: How tight should a fitting be?
Hand tight plus a small fraction of a turn. Because the seal is made by the O-ring rather than by the thread, over-tightening adds no sealing benefit and only risks damaging the port thread on the block or radiator.
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