Fitting EK Water Blocks Brass Gold 11.5mm Height

EK-Quantum Torque Micro HDC 12 - Gold is a compact 12 mm fitting for solid tubing including acrylic, PETG, and brass tubes. With an installed height of 11.5 mm and an outer diameter of 16 mm, this fitting provides a much smaller footprint than standard Torque HDC 12 fittings while ensuring secure, leak-resistant connections in tight spaces. The body is CNC-machined from brass, nickel-plated and finished with genuine gold.

Advantages

The Micro design reduces installed height by approximately 23% compared to standard Torque HDC 12 fittings and has a smaller outer diameter, allowing tube routing where regular fittings would be too large. A high-quality EPDM rubber gasket inside the compression ring grips the solid tube for a reliable seal. The inner barb is socketed with a 9 mm hex (Allen) pattern to facilitate tightening without damaging surrounding components.

Suitable for

• Custom PC liquid cooling loops using solid tubing (acrylic, PETG, brass)
• Installations with limited clearance where low-profile fittings are required
• Aesthetic builds that require a gold finish and compact hardware

Key specifications

• Type: Compression fitting for solid tubing (HDC 12)
• Tube size compatibility: 12 mm solid tubing
• Installed height: 11.5 mm
• Outer diameter: 16 mm
• Material: CNC-machined brass, nickel-plated, gold finish
• Gasket: EPDM rubber compression gasket
• Inner socket: 9 mm hex (Allen) pattern
• Brand/MPN/EAN: EK Water Blocks / 3831109849989 / 3831109849989

How to use

Slide the compression ring over the end of the solid tube, insert the tube fully onto the fitting barb, and tighten the compression ring until the EPDM gasket engages and secures the tube. Use a 9 mm Allen key to engage the inner socket if required to hold the fitting during installation. Ensure even tightening and avoid over-torquing to prevent damage to the tube or fitting finishes.

Recommendations

Use an EK-Loop Multi Allen Key or a properly sized 9 mm hex key to tighten the fitting and avoid damaging other liquid cooling components. Verify tube end faces are square and clean before installation; periodically inspect fittings for tightness and signs of wear.