🐠 Pawfly 6 PCS One-Way Aquarium Air Flow Control Lever Valve Distributor Splitter Pump Accessories Set: Enhance Fish Tank Aeration with Sturdy Suction Cups Review

Used for a DIY CO2 system for my 13.5 gallons as a check valve. I tried all the valves but they leaked and the bubble counter never reset. Probably fine for other uses, but not if you need full waterproofing.

Have used these for hatching Artemia and they are definitely worth the money compared to cheap plastic valves. It's easy to adjust the airflow and they seem airtight when it's time to drain the shrimp.

The suction cups work fairly well but the clamps that hold the hose in place aren't that strong. The lever on the control valve doesn't allow for very fine adjustments like a valve slide, but they work great for my purpose of dripping shrimp and fry.

Good device, very useful for controlling airflow when feeding fish/aquarium cleaning, except one of the direct airflows doesn't work, the air can't pass at any angle of the lever. . Batch is incompatible - one unusable / defective .- defective left.

Beautiful set of L-shaped and straight metal valves. I use them to regulate air and control water flow while acclimating new fish. They feel really well built and the control lever is very precise. It's easy to get the exact amount of air or water you want. I will definitely and probably buy them again.

Good control valve but no suction cup! 6 suction cups are of very poor quality. When submerged in water, the suction will merge with the water and after a few days you will see the color change from clear to cloudy. My fish ate the melted plastic and died. I'm not new to the aquarium hobby. After ruling out all possible factors, I ran several experiments to prove that the suction was at fault.