probably my fault--did not realize the input size is a funky size--requiring non-standard size tubing--so I can not use it and too much trouble and cost to return. (Posted on 10/4/2018)

a great supplier and a great product. Well done guys. (Posted on 8/15/2018)

I have 3 of these for my drip system. (Posted on 10/3/2014)

This item is very well made, the valves actually work great not like most other products I have used. When you turn the little valve it is very sensitive and allows you to fine tune the air flows in each outlet. Great product it works great. Would purchase again. (Posted on 5/8/2011)

I am using it on a drip system for a hydroponic setup. Works great! Easy to control and built well. (Posted on 6/12/2009)

works great for sending air every where at different pressure levels !
on two of the three air manifolds I ordered the small metal levers that you turn to adjust air flow. 3 of them had fallen out !
I put a drop of supper glue on all of the leavers so hopefully no more will fall out. (Posted on 4/22/2009)

this is exactly what i was looking for excellent quality am using it for multiple tanks and this gives me many options on air distribution thank you for providing a high quality item at a affordable price (Posted on 1/24/2009)