EK Water Blocks EK-Loop Leak Tester Flex – Liquid Cooling Leak Testing Tool

Product Overview

The EK Water Blocks EK-Loop Leak Tester Flex is a purpose-built tool for quickly checking custom liquid-cooling loops for potential leaks before filling the system with coolant. Traditional leak testing can require hours of observation to identify very small leaks, while the EK-Leak Tester allows users to pressurize the loop and check its integrity much more quickly.

Built with a solid CNC-machined aluminum body, a dedicated liquid-cooling pressure gauge, an integrated valve, and a compact pressurization pump, the tester provides a straightforward method for checking a custom loop before operation.

Fast & Safe Leak Testing

The EK-Loop Leak Tester provides a quick way to identify potential leaks in a liquid-cooling loop.

Instead of filling the loop with coolant and waiting for an extended period to discover a small leak, users can pressurize the loop with air and monitor the pressure gauge before introducing coolant.

CNC-Machined Aluminum Construction

The main body is manufactured from a solid piece of CNC-machined aluminum, providing a robust construction suitable for repeated use during custom-loop assembly and maintenance.

Its compact design makes it easy to integrate into a liquid-cooling setup while maintaining a professional, purpose-built appearance.

Custom Liquid-Cooling Pressure Gauge

The included pressure gauge is specifically designed for liquid-cooling loop testing.

It clearly identifies the predefined safe pressure zone, allowing users to monitor pressure during testing and avoid applying excessive pressure to the cooling system.

Integrated Pressurization Pump

A small pump is included with the tester, allowing users to pressurize the cooling loop without requiring additional equipment.

The pump works together with the gauge to provide a controlled method of introducing air pressure into the loop during the leak-testing process.

Revolvable G1/4″ Connection

The tester features a revolvable male G1/4″ fitting, allowing it to be connected directly to a standard G1/4″ port on a compatible liquid-cooling component.

The revolvable connection makes positioning the tester more convenient during installation and testing.

Integrated Air-Sealing Valve

An integrated valve on the tester helps prevent air from escaping through the tester itself while the loop is being pressurized.

This allows the pressure gauge to provide a more useful indication of whether the loop is maintaining pressure during the test.

Test Before Adding Coolant

Using an air-pressure tester before filling the loop can help identify potential leaks without introducing coolant into the system.

This makes troubleshooting cleaner and can reduce the risk of coolant reaching PC components during the initial leak-checking process.

Important Pressure Safety

To help prevent damage to the liquid-cooling loop, pressure should be kept only within the predefined safe zone shown on the gauge.

The safe maximum pressure indicated on the gauge is specified for EK products. EK does not guarantee that non-EK components will withstand the predefined pressure range. Always read and follow the product user manual before operating the tester.

Technical Specifications

Ideal For

• Custom PC liquid-cooling loops
• Hardline and soft-tube builds
• First-time custom-loop builders
• PC water-cooling maintenance
• Leak testing before coolant filling
• EK-based custom cooling systems
• Users who want faster and cleaner leak detection
• Custom-loop troubleshooting and installation