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Four silver brass G1/4" rotary fittings for liquid cooling

FormulaMod

FormulaMod GD-90 Brass G1/4" Rotary Fitting 4-Pack Silver

SKU CH-H63C-3Q31Z

Four brass G1/4″ rotary fittings let hard-tube runs pivot 90° for tidy liquid-cooling loops

  • Fan sizeNo Fans
  • Product typeWater Blocks
  • Product colorSilver
  • Brass construction resists corrosion for long loop life
  • G1/4″ threads fit standard water-cooling components
  • Rotary design allows multi-angle routing without stress
  • Four fittings included to complete a full build
  • Silver finish matches common loop aesthetics

Silver G1/4" Brass Rotary Fittings

This set contains four silver rotary fittings manufactured from brass. Each piece features a G1/4" external thread for standard water-cooling components. The rotary design allows multi-angle adjustment so hard tubing can be routed without stress on the blocks. The pack suits builders assembling a custom loop who need several matching connectors at once.

Replacing fixed or single-angle connectors

Fixed fittings force tubing into sharp bends that can kink or leak over time. These rotary adaptors replace them by letting the joint swivel freely during assembly and maintenance. The upgrade is worth it when a loop uses hard tube runs that must navigate tight spaces around motherboards, graphics cards or radiators. Four units cover a typical CPU-plus-GPU loop with inlet and outlet pairs.

Builders planning a hard-tube custom loop

The fittings suit enthusiasts who prefer rigid acrylic or PETG tubing and want clean, leak-free angles. They are not intended for soft-tube installations that rely on compression rings, nor for loops requiring specialised quick-disconnect or angled bulkhead fittings. Buyers needing different thread sizes, colour-matched black versions or larger quantities should look at other fitting families.

How it compares

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

Price $41.99
Cheaper than about 65% of the 1,190 comparable items (median $71.99).

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Specifications

Product
Product typeWater Blocks
Product colorSilver
Size & build
Fan sizeNo Fans

Questions about this item

What thread size do the GD-90 rotary fittings use to mount in a water-cooling loop?

Each fitting has a G1/4" external thread, the standard size for most water blocks, radiators and reservoirs.

How do you install the multi-angle adaptors without causing leaks?

Hand-tighten the brass body onto the component, then rotate the adjustable elbow to the desired angle before securing the lock ring; over-tightening the lock ring after the tube is seated is the common mistake that distorts the O-ring.

When should the O-rings inside these brass fittings be replaced?

Inspect the O-rings whenever the loop is drained; replace them if they show flattening, cracking or loss of elasticity, typically after several disassembly cycles.

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