Review on 🐠 AQUANEAT Aquarium 1 Way Thread Valves: Enhance Air Flow Control with Metal Gang Valves & Manifolds! Perfect for Air Pump - Set of 20pcs by Nicole Jones

I built a 40 tank aquarium in my basement and these valves work great! I see the exact same valves for about $2 each on other sites where I would honestly rather buy them, but you can't beat that price. These little things are also very durable. I actually installed them by pre-drilling a smaller hole and then putting these valves in my drill chuck and hammering them. Everything works and nothing is broken! Will definitely buy again when it's time for an expansion!