COMOK 4-Way Aquarium Air Check Flow Control Swtich Gang Valve

I needed one of these to divide up some airline to my Daphnia cultures. It works extremely well. The air flow control is easy to use. I have them all turned down to where air just eeks out of the air stones or 1-2 bubbles per second on lines without stones. I'm buying more for my other live food cultures.The first one I got arrived damaged (the inlet nipple was broken off) and Amazon replaced it.

They are working very well ,because I have arthritis easier for me to adjust than the metal ones with the lever.when I redo the 65 gal will be purchasing more of these

I have 10 tanks running and/or in the process of being set up, and I intend to use these on every tank. I love how easy it is to adjust the valves, very fine adjustment. I bought another one from the local pet store from a name brand, and the valves are so hard to adjust, and the adjustment is so coarse, it's off or full-blast! But not these, these are sweet in comparison. And it comes with the check-valve built-in, which is a good safety measure which I probably wouldn't have spent extra money on, but I'm glad it has it! If you've ever had a tube pop off your air pump and it starts siphoning water out of your tank onto whatever surface your air pump located... which is usually where the power strip is also located... I have!

As with most items mass produced, the black air control valves will eventually have to be replaced at some point in the future One should inspect the item thoroughly as it DOES NOT COME IN A BOX TO PROTECT THE FRAGILE VALVES.I purchased two, one each for my 36 gal bowfront and 38 gal bowfront to connect standard air tubing to certain decorative items attached to air-stones and sponge filters. However the problem lies in securing the item to the tanks ,which will require some ingenuity on your part to make work; which at this junction, I am STILL trying to find a solution. Be that as it may, the apparatus does a decent job -yet until COMOK adds an "ATTTACHMENT DEVICE" to this product that can be used to anchor it to a tank and places it a protective covering; I can only give it a "begrudgingly" 3 STAR SALUTE.

This is a good quality item. Was super easy to set up and use. The valves open close very well for it being plastic.

I received the 4 way air valve within a couple days. I like the clear plastic, because it is much less intrusive that the green or black ones. I also like that the hose going to the pump is on the bottom. That allows the hose to hangs straight down and not out to the sides. It looks better and less space is taken up.The only thing I would ask to be changed is that it had two intake hose attachment s and not just the one.

Casing was broken upon arrival 😫

All Good