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Review on 🐠 S.T. International CO2 Hanging Bubble Counter with Check Valve - Optimized for Aquariums by Cathy Khan

Revainrating 5 out of 5

Decent bubble counter

This device works properly. I coated the threads with pipe sealant and filled them with walnut oil. No leaks. I also installed a second check valve a few feet away after reading the reviews. Although the unit doesn't have a hanger, I used clear tape to secure it high up on the side of the tank.

Pros
  • Pleasing
Cons
  • Mostly good, but...