greenDracaena D-G-Extender 6 Pack G1/4" 15mm Male-Female Extender Fittings Black

Six-Pack Extender Kit for Custom Loops

This set provides six G1/4" male-to-female extender fittings in black, designed to add 15 mm of spacing between components in a custom liquid-cooling loop. The chrome-plated brass construction resists corrosion and aids heat dissipation, while the polished finish suits showcase builds. Each fitting measures 18 mm in outer diameter and 0.59 in height, matching standard water-cooling dimensions. Tool-free installation lets builders adjust tube routing quickly without specialised equipment.

Chrome-Plated Brass With Concealed O-Ring Seal

The fittings are machined from brass with a chromium coating, giving a durable surface that withstands coolant chemistry and repeated assembly cycles. A concealed O-ring groove holds the included seals flush against the mating surface, reducing the risk of leaks even when the loop is pressurised. The 0.71 in square profile allows the fittings to sit side by side in tight radiator ports or distribution blocks without interference. Six pieces are supplied in a single pack, covering most dual-radiator or complex routing scenarios.

15 mm Height Decides Clearance Compatibility

The critical dimension is the 15 mm overall height, which determines whether the extender clears adjacent components such as motherboard heatsinks, RAM modules or GPU backplates. Builders with less than 15 mm of free thread depth on a port cannot use these fittings and must choose a lower-profile alternative. Conversely, loops that need exactly this standoff to align hard tubing or to bridge a gap between a pump outlet and a radiator inlet will find the height a precise match. No other specification overrides this clearance requirement.