EK-Quantum Torque HDC-16 Black Compression Fitting (6-Pack)

EK-Quantum Torque 6-Pack HDC 16 - Black

Upgrade your custom liquid cooling build with the EK-Quantum Torque 6-Pack HDC 16 - Black, a premium multipack containing six 16 mm hard-tube compression fittings engineered for use with solid tubing such as Acrylic and PETG. Designed with a clean, non-intrusive aesthetic and no external branding, these CNC-machined brass fittings feature a high-quality satin black finish for a sleek, professional look. The secure compression locking ring prevents tube pull-out by firmly compressing the internal rubber O-ring gasket, while external grooves allow for easier hand tightening. Part of the award-winning EK-Quantum Torque series, recipient of the prestigious iF Design Award, these fittings support interchangeable aesthetic color rings, sold separately, for custom accent styling. Built for durability and loop purity, the fittings are intentionally not painted internally to reduce contaminants in the cooling system. Fully compatible with EK liquid cooling components and G1/4" threaded systems, the Torque HDC 16 fittings deliver secure sealing performance, modular flexibility, and premium build quality for advanced custom PC water-cooling setups.

Premium Hard-Tube Compression Fittings

The Torque HDC 16 fittings are designed for 16 mm solid tubing like Acrylic and PETG, providing a secure, leak-resistant connection while maintaining a clean, minimalist look for your custom loop.

Award-Winning Design

Part of the iF Design Award-winning EK-Quantum Torque series, these fittings feature a robust, industrial aesthetic, precise CNC machining, and optional interchangeable colour rings to add personal accents to your build.

Secure and Easy Installation

The compression locking ring compresses a high-quality rubber O-ring to prevent tube pull-out. External grooves allow for hand tightening, and the internal 9 mm hex socket ensures safe and controlled installation using an Allen key, minimising the risk of damage.

Durable, Pure, and Reliable

CNC-machined brass with a satin black finish ensures long-lasting durability. The fittings are intentionally unpainted internally to reduce loop contamination, ensuring clean coolant flow and optimal thermal efficiency.

Usage & Safety Guidelines

• The use of specifically engineered coolants containing corrosion, scale, and biological inhibitors is mandatory to protect your nickel-plated fittings. EK offers a selection in the coolants section.

• Always wet the O-ring gasket with water before installing the solid tube.

• Chamfer freshly cut tubing edges (recommended 0.5 mm x 45°) to prevent O-ring damage.

• Do not use excessive force when inserting solid tubing or attaching fitting barbs with the Allen Key 9 mm.

• This product should not be used with aluminum Fluid Gaming parts.

• Aesthetic rings are sold separately.

• Premium 16 mm Hard-Tube Fittings: Designed for Acrylic, PETG, and other solid tubing.
• CNC-Machined Brass Construction: Durable satin black finish ensures long-lasting reliability.
• Secure Compression Locking Ring: Prevents tube pull-out and ensures leak-resistant connections.
• iF Design Award-Winning Series: Sleek industrial design with optional interchangeable colour rings.
• Loop-Purity Focused: Internally unpainted to reduce pollutants and maintain coolant purity.
• Easy Installation & Maintenance: External grooves for hand tightening, internal hex socket for controlled Allen key use.
• Full Compatibility: Works with all EK liquid cooling products and G1/4" threaded systems.
• Safety & Prep Guidelines Included: Supports proper O-ring installation, tubing chamfering, and coolant protection.