Water block Alphacool 17578 Brass Black 23.5mm 31mm 18.5mm

The Alphacool Low Profile ES L-connector (G1/4" male to G1/4" female) from the ENTERPRISE SOLUTIONS series enables connecting water-cooling components such as GPU and CPU coolers, reservoirs or radiators in very tight server cases. Its compact, low-profile design and durable finish make it suitable for installations where space is limited.

Advantages

The connector features a recessed, freely rotatable plug with a screw slot on the threaded opposite side, allowing 360° adjustment without rotating the entire connector body. This simplifies installation in confined server housings and allows later repositioning. A hard-wearing surface treatment secures the outer coating against chipping or peeling, and each connector carries the Alphacool logo. Replacement O-rings in three colours are included.

Suitable for

• Connecting GPU and CPU water blocks in compact server cases
• Linking reservoirs and radiators where clearance is limited
• Retrofit and maintenance tasks requiring easy connector repositioning

Key specifications

• Thread: 1 x G1/4" male to 1 x G1/4" female
• Rotation: 360° adjustable via recessed rotatable plug
• Finish: available in brilliant chrome or matt black with durable coating
• Includes: replacement O-rings in three colours

How to use

Mount the connector to the G1/4" port of the water-cooling component and use a screwdriver or the Alphacool plug-in tool to rotate the recessed plug to the desired position. Because the plug rotates independently, there is no need to twist the entire connector body during installation. After positioning, verify the connection is tight and check O-rings for correct seating to ensure leak-free operation.

Recommendations

Use a compatible G1/4" threaded port and the recommended Alphacool tool or a properly sized screwdriver for adjustment. Inspect O-rings periodically and replace them with the included spares if any signs of wear appear. Do not overtighten the threaded connection to avoid damage to threads or seals.