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EK

EK Loop Leaker Tester Flex

Based on 157 reviews
Condition: New
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$54.99
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Oct 30
Order within 25 minutes

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At a glance

Condition
New
Dimensions
3.94 x 1.97 x 0.5 in
Weight
0.29 kg
Color
Black
Power Source
Corded Electric
Style
Custom
Measurement Type
Ohms, Volts, Amps, Hertz
In the box
1 product
Warranty
One year manufacturer
Works with
Desktop computers with standard G1/4" port in liquid cooling loop

Features 6

  • Hooked up with a non-return valve which will make sure that no air is escaping through the tester unit itself
  • Fitted with a revolvable male G1/4 connection port so it can be directly screwed into any standard G1/4 port in your liquid cooling loop
  • Model Number: 8
  • Flexible tube on one end, allowing you to easily reach any port in your loop and avoid stressing it when pumping

Description

The EK-Loop Leak Tester Flex is a fast and safe way of testing for possible leaks in your liquid cooling loop. While traditional leak testing works, it requires hours before very small leaks are detected and then things can become messy. The EK-Loop Leak Tester Flex does the job within minutes. This product has a flexible tube on one end, allowing you to easily reach any port in your loop and avoid stressing it when pumping. It is fitted with a rotary male G1/4” connection port so it can be directly screwed into any standard G1/4” port in your liquid cooling loop. The other end is hooked up with a non-return valve which will make sure that no air is escaping through the tester unit itself. A small pump for pressurizing the loop is also included. The top-mounted pressure gauge is custom made for liquid cooling loop testing purposes which clearly marks the safe pressure for testing. In order to prevent damage to your liquid cooling loop, keep the pressure only in the predefined zone marked on the gauge. Please read the user manual before using the EK-Loop Leak Tester Flex.

Specs 16

Brand EK
Power Source Corded Electric
Style Custom
Color Black
Item Weight 0.29 kg
Measurement Type Ohms, Volts, Amps, Hertz
Style Name Custom
Item Dimensions 3.94 x 1.97 x 0.5 inches

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


THIS ONE WORKS OUT OF THE BOX. I TRUST THIS ONE.
THIS WAS THE ONLT TOOL THAT WORKED OUT OF THE BOX, I HAVE TRUED OTHERS FROM AMAZON. THIS IS THE TOOL YOU WANT TO TRUST FOR EASE OF USE, SIMPLE, AND WORKED VERY WELL. WORTH THE MONEY, MAYBE AN ADAPTER OR TWO WOULD BE NICE. VERY HAPPY! Works well: VERY SIMPLE TO USE Why did you pick this product vs others?: OTHERS DID NOT WORK AS WELL ... show more
Reviewed in the United States on June 18, 2025 by Timothy

Leak or no leak?
Excellent product and worked as intended. In 15 minutes or less I was able to test if my new custom loop had any weak spots or not. Air leaks easier than liquid, so you can feel confident when testing is over that your good to go. As always, after a few heat cycles make sure to double check all of your fittings. ... show more
Reviewed in the United States on May 10, 2022 by Don

Better than others
Bought the Thermaltake version (pos) and it leak like crazy, bought this unit to replace it. All I can this is the one to buy. cost a little more, but worth it. Only thing I would change is the fitting sizes so you don't connect the wrong pieces together and think it doesn't work right.
Reviewed in the United States on July 23, 2023 by jon henri

Excellent build qualiyty
Build quality is excellent and I was surprised at how good it was. Does the job and lets you know if you have leaks in your loop.
Reviewed in the United States on November 3, 2024 by john g.

It's somewhat worth it
Pretty cool pump but it's expensive
Reviewed in the United States on February 2, 2025 by Parker Lewis

Slightly overpriced, but peace of mind was worth it
Easy to use, just remember, if you have a slight leak over considerable time, you're most likely going to be fine for liquid. Air seeps a lot easier than liquid does. Make SURE you don't crank it all the way up, my distro block recommended no more than .3m of pressure to leak test. This helped me save not having to drain and rebuild my system over and over. I had a fast leak I couldn't figure out, and it was coming from a 90 degree rotary fitting that I had downward force on, so it was creating a gap in the rotary seal. It would not hold any pressure for more than a few seconds, and if I tinkered around with the fitting, it wouldn't build any at all. This might've passed a normal fill test, but if I'd moved the case around at all, or pushed slightly different on the fitting when I put my video card in, I would have flooded coolant all over. I'd like to see it 10-20$ cheaper, it's simple for what it is, but you're buying it for insurance. ... show more
Reviewed in the United States on September 11, 2024 by Middy

As Described
As Described
Reviewed in the United States on October 11, 2025 by PainfullyAware

Great
worked like a charm but a bit overpriced for what it is. still helps me make sure all my fittings have a good seal every time i flush my system, and inevitably one isn't seated right.
Reviewed in the United States on August 29, 2023 by TheGuy
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