OdestarEK Water Blocks EK-Quantum Flow Indicator with D-RGB Lighting - Black

I have two of these in 2 separate water cooled PCs. Both work really well. In the attached images it sits horizontal attached to hard tubing from 2 separate directions. It does sag a bit, but it's not at all heavy. It lights up as expected.The second PC is soft tubing and the spinner sits vertically, so there's no sag at all. It also works perfectly. Both spinners spin faster with increased water flow. I originally bought a spinner from another vendor, but it would sometimes get stuck due to tightness of the rotatory against the case sides.No noise is produced at all.Both PCs the spinner has never leaked and have been spinning strong for 2 years.Sorry about the dust/dirt.

Product looks and feels amazing. Works great. The only drawback is the ports have an offset on them, so I couldn’t fit my coolant temp sensor in it like I wanted to. Other than that, a great product.

Seems a bit expensive for what it is. However, it is an invaluable tool to ensure you pump is working as expected since my full loops don't show any indication of water movement aside from this indicator.

Came out great looks awesome