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Black cylindrical compression fitting with knurled collar and G 1/4 thread

Thermaltake

Thermaltake CL-W033-CA00BL-A Pacific 3/8" ID 1/2" OD compression fitting diy cooling

SKU CH-A9JJ-8N5NR MPN CL-W033-CA00BL-A

Connects 3/8″ ID and 1/2″ OD tubing with a G 1/4 thread, black chrome-plated brass body and pre-installed O-ring

  • Product typeFittings
  • Key featuresDimension: ?18 × 22.2 (H) (mm) Applicable: OD : 1/2 in ( 12.
  • Leak-free flow with high-flow design
  • Black chrome-plated brass for corrosion resistance
  • G 1/4 thread fits standard ports
  • Pre-installed O-ring speeds up assembly
  • Compatible with 13 mm ID PVC tubing

Pacific Compression Fitting 3/8" ID 1/2" OD

This Thermaltake Pacific fitting connects 3/8 inch inner diameter tubing to a G 1/4 thread port in a custom liquid cooling loop. The black chrome plated brass body weighs 41 g and measures 18 by 22.2 mm. A pre-installed O-ring helps ensure a leak free seal with compatible PVC tubing.

Upgrade from barb or push-on fittings

Switching to this compression design removes the need for separate clamps and reduces the risk of tube blow-off under pressure. The step is worth it when you want a cleaner look and a more reliable seal without changing tube dimensions or thread standard.

Verify tube ID and OD match 13 mm and 12.7 mm

Confirm your tubing carries the exact 3/8 inch inner diameter and 1/2 inch outer diameter listed for this fitting. Ensure the component you connect to provides a G 1/4 female thread and that your loop plan accommodates the 22.2 mm installed height.

How it compares

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

Price $6.99
Cheaper than about 90% of the 609 comparable items (median $15.99).

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Specifications

Product
Brand nameThermaltake
Product linePacific
Model nameCL-W033-CA00BL-A
Product typeFittings
Size & build
Shipping weight0.03 kg
Package size72 × 66 × 22 mm

Questions about this item

Will the G 1/4 thread fit my water-block port?

The fitting uses a standard G 1/4 thread, so it screws directly into any component with a matching G 1/4 female port.

How do I seat the tube so it does not leak?

Push the 1/2 inch OD tube fully over the barb until it contacts the body, then hand-tighten the compression collar; the pre-installed O-ring seals the joint.

When should I replace the O-ring on this fitting?

Inspect the black O-ring whenever the loop is drained; replace it if it shows cracking, flattening or loss of elasticity.

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