Pawfly 2-Way Aquarium Air Flow Control Lever Valve Manifold for Air Pumps Fish Tank Multi-Port Distributor Splitter with 1 Non-Return Check Valve T-Shape & Straight Connectors and 4 Suction Cup Clips

The models of this type of device that are made entirely of plastic fail quickly - control levers break off or the hose attachment points just fatigue and break from nothing more than the weight of the tubing.Enter these beauties from Pawfly - solid metal, tough as nails. And the manufacturer stands behind their products 100% - can't ask for much more. There is no reason to worry that you may get one of those rare items that slipped through QA or that may have been damaged in transit to you - the manufacturer will take care of it promptly.The adjustments are easy to make, you don't need to use all the ports - just close off any not yet in use. This means you can get one with more ports than you need so that you will be sure to have an extra port or two when you do.My only complaint (and this is not really a complaint because I had no intention of using them) are the suction cups. They really smell badly of chemicals and I tested one out just to see how they were - they don't stay stuck to the glass very long. Again, I wasn't buying this for the suction cups, so this is not an issue for me, and frankly, should not be an issue for anyone since what we are buying here is the control valve ;-)Bottom line - I highly recommend this product and will shop from this store again (and already have!).

I have an air pump that is too strong, so I used this to split the feed into 2 stones. Worked great! And you can adjust the flow independently. The suction cups also work nicely to keep the hose (and hence, the stone) in place!

10/9/2023: have been testing for a while, and I LOVE this product! I didn't wanna buy another air pump when I came across these types of valves, and WOW! It works for both my tanks and it's not even loud (excluding air pump). It fits both my tubings and has some pretty strong power! That being said, you do have to adjust it to each sponge filter, one works perfectly fine but when you try to adjust it, the other filter stops. Otherwise, it's a great product! Anyone who has multiple betta tanks or ones with low-flow, I definitely recommend! Will be buying again if I get more tanks!

Perfect. Using then as secondary shutoff valve on my co2 to prevent backfeeding water into the bubble counters. Works like a charm. Well made no leaks even under pressure

Nice

Update:A month later I took this down a star. Although it is sturdy it is really a pain to get standard sized aquarium tubing on and now off. I basically had to cut the tubing to get it off the valve. Don't expect to recycle short lengths of tubing as you will be chopping them down more just to remove them. On the plus side it will make for a permanent set up.Original review:I really like that this is metal and not plastic. It is heavier than the plastic ones and seems well made. I have actually set it up to split the airline in two for a hydroponic system. The suction cup tubing holders works well; although, I had to use some thinned corn syrup to get them to really fix themselves to my grow box (glycerin works well for this also). My only complaints are that the connector tubes are a bit large and I had to use some dish soap to lube them up so the tubing would slide onto them. If you go that route just make sure that the soap is on the sides and not near the lumen of the valve and that way the soap won't get in your lines. The other complaint is that the bonus check valve was even thicker than the metal so I just couldn't get the tubes on it (even with soap lube) and I ended up using a spare one I had instead.

I love being able to controlling the flow to my different airstone and filters. And the values are great during power outages. Great price too!

These valves are perfect for splitting air into different directions. Especially like the ability to adjust how much air is flowing to each valve and ability to shut any of them off entirely. These are very solid and work perfectly. The check valves in addition were a pleasant addition.

They work great, and easy to use.

No complaints - arrived as ordered! :)

all the vales work and don't seem to have any issues i had it or only 1 month so don't take my word on it

This product will help you save money! It allows you to filter many objects in your tank or even filter several objects in multiple tanks off of just one source of pump. Reduce your electric bill and spend less on buying multiple pumps.You will have to play around with the pressure settings if you are using multiple objects like sponge filters and air stones for example. I purchased twist values with this product and its just perfect.

I'm very happy with this product, I think it works well. I like the fact that it's metal and easy to control the amount of air that goes in my betta bowls. The suction cups work well if you put them on by working from one side to the other instead of just pushing them on from the middle of the cup. They keep my lines in place, which means I don't have to hold the air stones down by other means. I would buy these again if I ever need more and can recommend them highly.