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Pawfly Aquarium Check Valves Plastic One Way Non-Return Check Valve for Fish Tank

4.9 (12) Write Review
Free shipping on orders over $29.99

$4.99

$ 1 .99 $1.99

In Stock

1.Color:Black


2.:10 Pack


About this item

  • For Oxygen Pumps Only: Great 1-way check valve for most common aquarium air pumps. NOT suitable for CO2 or other high-pressure systems to avoid crack and leak.
  • Small & Light: Size: 2.1" L x 0.55" W; Diameter of air holes: 0.12"; Weight: 0.1 oz. Standard ID airline tubing: 3/16". Add little weight to your hose for smooth airflow.
  • Ideal Pump Protectors: Prevent backflow of water through the tubing during a power outage or pump pause. Essential accessories for basic aeration setup in your fish tanks.
  • Sturdy & Quiet: Made of reliable plastic which can be tightly connected to the hose without air leak. The check valve can endure long-time use without making noise.
  • Easy Maintenance: Clean the valve regularly. Please poke it with a slim stick from the inlet side to push it open when it gets clogged inside and restricts air flow.


Aquarium Air Pump Check Valves Red/Clear Clear Plastic One Way Non-Return Check Valve for Fish Tank


Kevin
2025-08-24 18:15:31
In all my decades of owning a fish tank I finally had a check valve go bad. These work great and are easy to install. Pay attention to flow direction it's molded into the clear plastic.
GreatLakesMan
2025-08-10 15:28:39
These little guys work well, I only needed one but the six-pack was so cheap, it's an inexpensive insurance policy
Krystle
2025-07-22 11:52:11
These are easy to use and fit well with my aquarium bubbler we have had no leaky connection points, so these are great for anybody needing to put backflow valves into their tanks
TwoBearsPecker
2025-06-27 10:09:42
Easy to use, Gets a firm leak proof seal with a firm push.
TS
2025-06-23 14:04:00
These haven’t given me any issues and I actually had a power outage recently and no water came out of my beta tank so I would say it did it’s job!
Once a geek, ...
2025-06-21 14:41:21
These work, but do not hold up to much stress. I’ve had two break in the air-hose nipple.I’ve stopped using these, still looking for a purge valve solution..
JR
2025-06-19 15:40:47
Everything was great
mary angus
2025-06-16 15:35:29
perfect back flow valve, works great
William
2025-06-02 13:19:16
Excellent one-way check valve.. although not recommended, I've used these on an CO² tubing and they actually work better than some CO² C.V's I paid twice as much for.Would STRONGLY recommend for normal air pump lines on the aquarium.
Mrs.C
2025-05-20 17:03:56
Only needed one. Works the way you would expect. And it's nice having the extra laying around.
Eduardo
2025-03-22 18:37:06
Works perfectly. I use it for my fish tanks and as a diy burp valve for my fermentation jars.It does not work for co2 systems unless you seal the junction between the 2 plastic pieces. I did seal it with some glue and is working perfectly on a co2 system for my planted aquarium.
Timi
2025-01-28 18:02:13
Très bon produit. Identique à la description et aux photos. Très satisfait.