Alphacool17356 Ice Wing Flow Indicator Blue 6-11 mm Acrylic Water Cooling Monitoring

works as expected, you can clearly see the indicator turning.

As described, quick shipment and delivery.

I bought it to make sure I don't have clogs in my single pump continuous mining system. It's not exactly cheap, but it's not cheaply made either. I like that it's a super simple slip-on hose end. Neat to see it spinning. It is totally noise-free.

So I use this for a somewhat stranger purpose than most intend to, but if you're also a bit strange and want a flow indicator for your enema bag, then this is perfect.This fits all of my 5/16" and 1/4" tubing without issue. I just snipped some tubing about 4" down from where the tube connects to the bag and put it in-between. Doesn't seem to slow down flow much too. The barbs on it are also three separate sizes, so you can just notch it into whichever that fits your tubing.It may not move at first if it's not filled with water initially, but it takes seconds for that to happen, and it's never been an issue while in use.I strongly recommend this for anyone using enema bags, especially opaque bags and bags larger than 2-quarts. It helps so much if you're using longer nozzles too, where you might not realize the flow stopped because the tip is pressing into stool or the colon wall, or even indicate if the bag isn't high enough.

very nice