
Thermaltake
Thermaltake CL-W214-CU00BL-B Pacific C-Pro PETG Fitting Pack
Six-pack of G1/4 PETG compression fittings with four integrated O-rings each — engineered to eliminate hard-tube loop leaks before they start.
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Overview
Key Features
Fitment Reimagined: This new concept makes it easier than ever to install custom hard tube liquid-cooling loops.
Four Built in O-rings: Maximum leak prevention, secure compression seal, and peace of mind.
Protection You Expect: Surface treated and a special coating finish provides increased durability and protection from corrosion.
Build It Your Way: Compatible with liquid cooling components that utilize G1/4 thread ports and 16mm OD PETG, Acrylic, and Copper hard tubing.
Exclusively Designed Open-End Wrench is Included
Specifications
Model
Pacific C-Pro G1/4 PETG 16mm OD
Color
Black
Dimensions
D26 x 21mm (H)
Thread
G 1/4
Compatible Tubing OD
16mm
Compatible Tubing Materials
PETG, Acrylic, Copper
Material
Copper + Aluminum (CU + AL)
O-Rings per Fitting
4
Quantity per Pack
6 fittings
Included Accessory
Open-end wrench
Frequently Asked Questions
What tubing diameter and material is this fitting designed for?
The Pacific C-Pro fittings are specified for 16mm OD (outer diameter) hard tubing in PETG, acrylic, or copper. They will not correctly seat 13mm or 12mm OD tubing — OD spec must match exactly for the compression seal to function.
How does the four-O-ring design reduce leak risk compared to standard compression fittings?
Standard single-O-ring fittings rely on one compression point; the Pacific C-Pro's four built-in O-rings distribute the sealing force across multiple contact zones. This redundancy means a minor installation imperfection at one ring is compensated by the remaining seals, reducing leak probability during initial loop filling.
What thread standard do these fittings use, and are they compatible with my waterblock/radiator/pump?
G1/4 thread (British Standard Pipe Parallel) — the universal standard for custom liquid cooling components. Virtually all water blocks, radiators, reservoirs, and pump tops from major manufacturers use G1/4 ports, making these fittings universally compatible within the custom loop ecosystem.
Is a special tool required to install and tighten these fittings?
Thermaltake includes an exclusively designed open-end wrench with the pack specifically sized for the C-Pro body. Do not use adjustable pliers or improper wrenches — the fitting body is a copper/aluminum composite with a surface treatment that can be marred by incorrect tooling.
What is the recommended coolant compatibility for these fittings?
The fitting body is copper and aluminum with a corrosion-resistant surface coating. Standard pre-mixed distilled coolants with copper-compatible inhibitors are appropriate. Avoid coolants with silver kill coils or biocides that react with aluminum, as the fitting has both metal types present.