Pretty great no problem setting it up ! Connected everything without any issues and it works great

Pretty great no problem setting it up ! Connected everything without any issues and it works great

The valve works great! It allows adequate air flow/bubbles, and fits the standard-sized tubing I had running between my air pump and my air stone.

The valve works great! It allows adequate air flow/bubbles, and fits the standard-sized tubing I had running between my air pump and my air stone.

Petco has excellent customer service. During this visit to pic up an item I decided to make another purchase. The assistant quickly located the item and I was on my way. The item worked as expected. Simple and effective

I bought this check valve and tried it out, it did not work, the air would not go through it.

I bought this check valve and tried it out, it did not work, the air would not go through it.

The first check valve I tried as a new fish owner was purchased at a competitor's store. It broke in half in a matter of minutes. So I picked one up at Petco and it looked like it was already better quality. It stayed in the package until I was ready again to experiment with an old, unused air pump. Long story short, it GREATLY reduced air flow. So I read all the reviews here of people who also had issues with them. I FIXED the problem in a VERY simple way: take a toothpick and slide it through the center of the rubber valve in the direction of airflow. It took ONE TRY and now air is gushing through the valve and into my test filter! PLENTY of bubbles now! And it hasn't broken in half yet, either ;-)