AQUANEAT Aquarium Control Valve, Fish Tank Air Valve, Air Flow Distributor Splitter for Commerical Pump Accessories(Small 4 Way)

Value for money...perfect, works well

Does the job

In the description it says it fits standard aquarium tubing but that's only in reference to the output. The input takes much larger tubing which I haven't been able to find and wouldn't fit my air pumps if I was able to. A bit of a disappointment.

Very nice control valve.. you are well on your way to get a fishery pneumatic certification with this thing.... lol.... worked perfectly and allows to control air flow to all ports independently without pushing back too hard on the pump....! as they say in the south..... NAH-EEZ...!

Worked well. No issues

I multiplied my indoor garden so all of a sudden a find myself with 8 mason jars and only 1 aerator. Not quite ready to shell out the big bucks for a setup that would aerate all 8, I got this and hooked it up to my existing aerator, and it works great! The valves allow me to fine tune how much air gets through each airstone

Input diameter way to large for my piston air pump. Unless could not even make it fit with heat.

Leaks from several of the valves regardless of valve position which causes loss of pressure through manifold and hissing when out of water and large undesirable bubbles when used underwater.