AQUANEAT Aquarium Metal Gang Valves, Air Flow Control Valves, 1 Way Thread Valves, Manifolds Air Distributor for Air Pumps Fish Room Air Systems,20pcs

I used these in pvc tubing on my rack in my fish room. Didn't have any issues with quality and they isolate air to hoses I'm not using. No leaks at all.

I have purchased at least 6-7 sets of these for my fish room. These are fantastic valves. After a year of use I see nothing wrong with them still.

I built a 40 tank fishroom in my basement and these valves work perfectly! I see these exact same valves go for about $2.00 a piece on other sites that I honestly would have rather purchased them through, but this price is unbeatable. These little things are also super durable. I actually installed them by predrilling a smaller hole and then putting these valves into the chuck of my drill and driving them in. Every single one works and none broke! Will absolutely buy again when it’s time to expand!

Product is exactly as described

They are pretty decent air valves. I recently installed 40 of them while moving my fishroom. They don't feel as well made as the AV1E available from Jehmco (for example, the levers aren't attached well, and during installation one fell off and I expect more will do the same over time).