Review on 🐠 Enhanced UXCELL Silver Metal 2-Way CO2 Tank Splitter Regulator Valve for Aquarium Plants by Albina Bloom

it did not lick and the male fed one for two. so I would give C. but the valve on this one is very useless. a) If you loosen it further it will pop out, adjustment is almost nonexistent at low flow. This can be useful for serving one side of the feed, then the other. but if you're thinking, "Oh, maybe there's an adjustment to that." Nope. The built-in, semi-expensive needle valve is on my "next thing I'll spend money on" and accepts 4mm diameter x 6mm OD polyurethane (pneumatic) tubing with no leaks. For that and the possibility to share the meal in 2. I bet 3.