seems to work well.
The valve works great. You can let the air flow open or even cut the air completely. It gives you total control of the airflow rate.
Great price and Great Service
Excellent product. Sweet price!
set up a sponge filter
works well to control flow.
Haven't used the product yet but the items arrived quickly
Easy to install, easy to use. The large knob is very convenient.
my husband works at a local pet store with a small fish department. He has brought home the airline valves they carry, they are cheap plastic and often not very functitonal. The Ziss valves are solid and well made, easily adjustable and very effective. Definitely a superior product!
I like the big knob but even more than that I like that I can see how far down the little peg is in the line to see how much air is being blocked.
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