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Uxcell Aquarium Non-Return Air Pump Check Valves
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- 2 PCS Non-Return Check Valves for Aquarium Air Pump
- They are made of plastic material for long time use
- The Aquarium Valves are important accessories for air pumps
- Measuring approx. 2.08" long, 0.56" diameter; Tip outside diameter: 0.18"
- Package Included: 2 x Check Valves
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Specially designed Non-Return Valves will protect you air pump by preventing aquarium water from back siphoning during a power outage. Place these Air Pump Valves in your airline tubing between your air pump and aquarium water to prevent water returning down the air line. Total Weight: 9g.
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Using this product I was able to keep my airline connected overnight with no backflow. So I feel confident that I can keep my air pump running to a bubble stone 24/7 and while on vacation.
Also keep in mind that this seller ships from China so it will take a while before you get it. Yes the shipping is free but it was weeks before I got it.
For now at least the hold the tubing very well, and pass the breath test.
If I have any issues at any point, I'll re-update.
Installation is easy, but if you have standard size hosing, do not expect it to slide all the way into the valve, because the tip gets wider as it reaches the valve's chamber. I installed the tube as far as I could and then gave it a good tuck to ensure it wouldn't come off during operation, it stayed nice and tight with no air leaks.
All in all, a good, inexpensive way to protect your air pump. A must have. Hope this helps.
P.S. I took and edited a couple of pictures of these. You can view them in the item gallery/images in case you are wondering the direction of which to install these.
It's been almost a year since I bought these (Jan.2012) and they still work. I have two air stones in my aquarium running 24/7 and the valves still let air through constantly and without a problem.