EK-Quantum Scalar Flow Indicator Bottom-To-Top D-RGB – Nickel


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EK-Quantum Scalar Flow Indicator is a premium GPU-mounted flow indicator with addressable D-RGB implementation. It visually represents the coolant flow rate, which is often hard to see with the naked eye. This can be very useful to instantly see if your loop operation is nominal or there’s trouble with the pump or flow in some other area… and let’s face it, it looks cool! Aside from that, it perfectly blends with your GPU block and backplate with an aesthetic nickel-plated aluminum cover.

EK GPU-mounted flow indicator nickel

It features dedicated G1/4″ In and Out ports. It is MANDATORY to follow proper setup as the ports are labeled. Please, consult the manual before installing it. This variant has a bottom-top flow pattern, where the liquid is supposed to enter on the side on the bottom and exit out of the top. The flow indicator features a unique impeller body with a closed center and sloped impeller wings which prevent air from being stuck inside the indicator.


This product is compatible with popular RGB sync technologies from all major motherboard manufacturers. The arrow marking on the 3-pin addressable LED connector is to be aligned with the +5V marking on the D-RGB (A-RGB) header. To follow the EK Quantum design language, an anodized aluminum cover is used to hide the LED hotspots and offer even lighting across the whole device. It features a total of 2 LED’s inside the housing.

This flow indicator is manufactured out of CNC machined cast acrylic material with an anodized aluminum cover that has the same finish as EK-Quantum Vector GPU backplates. 

– EK-Quantum Scalar Flow Indicator Bottom-Top D-RGB – Nickel
– G1/4″ nickel-plated brass plug x 1

Made in Slovenia – EU!


  • The port that has already a plug installed is not usable! The opening is only a part of the manufacturing process.
  • These flow indicators are compatible with RTX 2000 series Vector water blocks as well as RX 5700 water blocks. If you’re using a waterblock for GTX 1000 series cards or RTX 3000 series cards, you have to remove the terminal cover to fit the indicator.


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