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Six green compression fittings with knurled collars, 16 mm OD, G1/4 thread

Thermaltake

Thermaltake Pacific C-Pro G1/4 16mm OD Compression Fitting 6 Pack CL-W212-CU00GR-B diy cooling

SKU CH-NCE4-WNC20 MPN CL-W212-CU00GR-B

Six green G1/4 compression fittings for 16 mm OD hard tubing with four built-in O-rings each

  • Tube sizeDimension: 26 (D) x 21 (H) (mm) Applicable: OD : 16 mm Screw
  • Tubing materialCU + AL
  • Product typeFittings
  • Product colorGreen
  • Key featuresThermaltake Pacific C-PRO G1/4 PETG Tube 16 mm OD Compressio
  • Four built-in O-rings ensure maximum leak prevention and a secure compression seal
  • Special surface coating provides increased durability and corrosion protection for long-term use
  • G1/4 thread compatibility fits standard liquid-cooling components with 16 mm OD hard tubing
  • Exclusively designed open-end wrench included for quick, tool-free installation
  • Green anodised copper and aluminium construction matches themed custom-loop aesthetics

Pacific C-Pro G1/4 16mm OD Fittings

This six-pack of compression fittings connects 16mm outer-diameter PETG, acrylic or copper tubing to any G1/4 threaded port in a custom liquid-cooling loop. The green finish matches themed builds while the compact 26mm diameter and 21mm height keep routing tidy inside tight chassis spaces.

Four built-in O-rings

Each fitting ships with four pre-installed O-rings that create a redundant seal, reducing the chance of leaks during fill and long-term operation. The surface treatment resists coolant additives and oxidation, so threads stay clean when the loop is drained or reconfigured. An open-end wrench is bundled for final tightening without marring the anodised body.

Bundled wrench streamlines assembly

The included tool fits the flats precisely, letting builders torque every joint to a consistent feel without hunting for a separate spanner. Having six identical fittings in one pack covers most CPU-to-radiator or GPU-to-reservoir runs, while the G1/4 standard ensures compatibility with existing blocks, radiators and pumps that share the same thread.

How it compares

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

Price $45.99
Pricier than about 77% of the 609 comparable items (median $15.99).

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Specifications

Product
Brand nameThermaltake
Product linePacific C-Pro Series
Model nameCL-W212-CU00GR-B
Product typeFittings
Product colorGreen
Size & build
Tube sizeDimension: 26 (D) x 21 (H) (mm)
Applicable: OD : 16 mm
Screw Thread: G 1/4
Note: PETG Tube to G1/4
Tubing materialCU + AL
Shipping weight0.25 kg
Package size142 × 136 × 36 mm

Questions about this item

What G 1/4 thread size do these fittings use, and what outer diameter tubing does it accept?

Each fitting uses a G 1/4 screw thread and is designed for 16 mm OD PETG, acrylic, or copper hard tubing.

What are the overall dimensions of a single fitting, and will it clear tight component spacing?

The fitting measures 26 mm in diameter and 21 mm in height, so check clearance against adjacent blocks or radiators before installing.

How do I install these compression fittings, and which step is commonly missed?

Slide the collar and all four built-in O-rings onto the tube, insert the tube fully into the base, then tighten the collar with the included open-end wrench — the step often missed is ensuring every O-ring seats evenly before final torque.

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