Como 3 Pcs Non-return Plastic Air Pump Check Valves Clear for Aquarium

this product is priced cheaply so its a great find. it does exactly what it was designed to do. my power went out and none of the water went into my air pump

I bought these for a windowfarm.org garden. They work very well though it takes slight pressure to flow through this.

So far so good though. No leaks in my vertical garden. Very happy.

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Only one of the three valves I received works well, another is totally jammed and won't let air pass, and the third has poor airflow.

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Received on time, very good product. working great. Will buy more for my friends. make sure it will fit into the tubings.

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Placed two (in case one were to fail) inline on my air pump and works great. Seems a little expensive but....