Alphacool ES G1/4 90° rotatable fitting with barbed fitting for tubes ID 6mm

The Alphacool ES G1/4 90° rotatable Fitting with Barbed Fitting for Tubes ID 6mm is part of Alphacool’s professional ES series and sets new standards in design, functionality, and reliability for water cooling systems in servers, workstations, and industrial applications.

With its precisely machined barbed fitting and solid brass construction, this connector ensures a secure and leak-proof connection for 6mm tubing. The internal diameter is optimized for minimal flow resistance, supporting effective coolant circulation even in complex system configurations.

Hose barb fittings offer a compact and straightforward alternative to compression fittings, highlighting more of the tubing and saving space — especially useful in tight installations or specialized setups. Despite their minimal form factor, they provide secure hose grip and high flow capacity.

Thanks to the 90° rotatable design, tubing can be routed with exceptional flexibility. The fitting simplifies clean loop layout, reduces mechanical stress on the tubing, and enables space-saving installations — ideal for compact cases or densely packed rack systems.

ES Series – developed for professionals
Each component in Alphacool’s ES line is engineered for professional-grade reliability and performance. Whether in a high-performance workstation or industrial cooling setup, these fittings deliver consistent performance and robust build quality.

With its precisely machined barbed fitting and solid brass construction, this connector ensures a secure and leak-proof connection for 6mm tubing. The internal diameter is optimized for minimal flow resistance, supporting effective coolant circulation even in complex system configurations.



Hose barb fittings offer a compact and straightforward alternative to compression fittings, highlighting more of the tubing and saving space — especially useful in tight installations or specialized setups. Despite their minimal form factor, they provide secure hose grip and high flow capacity.



Thanks to the 90° rotatable design, tubing can be routed with exceptional flexibility. The fitting simplifies clean loop layout, reduces mechanical stress on the tubing, and enables space-saving installations — ideal for compact cases or densely packed rack systems.



ES Series – developed for professionals

Each component in Alphacool’s ES line is engineered for professional-grade reliability and performance. Whether in a high-performance workstation or industrial cooling setup, these fittings deliver consistent performance and robust build quality.

Technical data
Type:	90° rotatable fitting for low flow rates
Dimensions:	30,50 mm x 26,35 mm x 15,80 mm
Nominal diameter:	6,5 mm
Connection type:	barbed fitting for tube
Material:	brass (CuZn39Pb3)
Seal material:	EPDM Shore A 70
Clamping spring material:	stainless steel (X10CrNi18-8)
Working pressure:	2bar
Burst pressure:	8bar
Working temperature:	-20℃ ~ +100℃
Recommended liquids:	water, deionized water, glycol water, propanediol water etc.
Thread type:	G1/4” 6 mm outer thread
Threaded fastening:	Open-end wrench width across flats 16 mm
Weight:	21g
Color:	brass, raw