flow sensor

(2) 1/2" Neptune Flow sensors. New $30 each shipped or both for $50

Neptune FS-100 1" flow sensor New and sealed in the box. SOLD!!

Apex FMK 1" Flow Sensor 2 Solid Surface Sensor

I have a brand new 2” Neptune Systems flow sensor, couldn’t fit it on my feed line to my skimmer, so had to use a 1” instead. I already glued 1.5” reducer bushing into the Union, so it is ready to go for 1.5” plumbing. And already sealed the threads. (As most will already know, it’s 50/50 with...

I’m currently considering the Coralvue Hydros system for my tanks. I would love to get a Hydros Flow Sensor for my return, but the reviews I’ve read report the sensor’s internal diameter restricts the flow by as much as 1/4” or more. I have a 1.5” return. Is it ridiculous to think I could buy a...

Can I plumb a Neptune flow sensor on the outlet side of an external protein skimmer? Or does it have to be on the inlet side? What’s the consensus?

I've liked to add some flow sensors to my tank. I've had my eye on them for awhile; but the low reviews on BRS have scared me off. Anyone have any experience with these. It seems like the most common complaints it that it restricts flow. One user mentioned his 4700gph pump was only getting...