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Pawfly

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

  • Based on 5,543 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Oct 11
Order within 20 hours and 29 minutes
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Color: Red


Pattern Name: 10 Pack


Features

  • 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.

Description

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

Material: Plastic


Brand: Pawfly


Exterior Finish: Plastic


Outlet Connection Type: Barb


Maximum Operating Pressure: 1 atmosphere


Number of Ports: 2


Specification Met: ASME B16.34


Number of Packs: 10


Unit Count: 10 Count


Manufacturer: Pawfly


Brand Name: Pawfly


Model Number: SN-ZXFO-QCT5


Number of Packs: 10


Unit Count: 10 Count


Manufacturer: Pawfly


Number of Items: 10


UPC: 652811965384 712383629524


Item Weight: 4 g


Number of Pieces: 10


Set Name: 10 Pack


Manufacturer Part Number: SN-ZXFO-QCT5


Exterior Finish: Plastic


Outlet Connection Type: Barb


Maximum Pressure: 1 atmosphere


Number of Ports: 2


Thread Size: 3/16 inch


Connector Type: Threaded


Valve Type: Check Valve


Size: Red


Material Type: Plastic


Specification Met: ASME B16.34


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Oct 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Best valves available.
Color: Black Pattern Name: 6 Pack
Here is an honest review from a verified purchase. I have been keeping aquariums for 40 years. These are among the best valves I’ve had. They work perfectly. Any review that says otherwise was written by someone that doesn’t know what they are doing or they were using them wrong. Simply slide a paper clip or toothpick into the opening and gently open the valve before connecting. After all you want a good seal to avoid water back flow. The air has air flows beautifully. They are easy to connect using some warm water on the tubing. They have nubs to keep the hose on. These are great valves. Don’t pay attention to negative reviews. ... show more
Reviewed in the United States on May 29, 2025 by C
    • Exactly what I needed
Color: Clear Pattern Name: 6 Pack
Thank gosh for these! No more water going back to the air pump when power goes out. Have been using one for a long while now with no issues. Super easy to install, no extra noise, exact fit, and does what it should. I own a 75 gallon fresh water tank.
Reviewed in the United States on August 9, 2025 by TNSunshine
    • Theyre good. Do the job
Color: Black Pattern Name: 6 Pack
I found some that were cheaper immediately after I ordered these. But I had to choose these. Good quality, Does the job... I only needed 2, but whatever..maybe ill have more pumps one day.
Reviewed in the United States on May 12, 2025 by Deezy
    • Great quality check valves
Color: Red Pattern Name: 6 Pack
Review Image by B V
Review Image by B V
Great quality check valves for a really reasonable price. Not much to these. Worked great for fixing my Keurig 2.0 K200 coffee maker which had a damaged air pump (very common problem I learned). Replaced the air pump and tested operation. Worked great but noticed water was being pushed into it, which is what caused it to fail the first time. Added one of these check valves in line and life is great now. Shame on Keurig for planned obsolescence. ... show more
Reviewed in the United States on January 2, 2026 by B V
    • Works
Color: Red Pattern Name: 6 Pack
Works as described
Reviewed in the United States on June 8, 2026 by Jordan
    • Quality Check Valves
Color: Red Pattern Name: 6 Pack
They arrived quickly. We'll packaged. Clean. High quality plastic. Doesn't feel cheap. There is a transparent arrow that clearly indicates the direction to orient the check valve. Best of all, I have it installed in line with my aquarium air pump and a control valve and so far (1 week installed) it has done the job a check valve should do. So no complaints. Good value for 6. ... show more
Reviewed in the United States on September 13, 2026 by Ruth
    • You get what you pay for...
Color: Black Pattern Name: 6 Pack
These were pretty cheap so I really wasn't expecting much and overall they are average. Yes, I saved money because just one at the local store is $5 buuuuuuut 2 out of the 6 were defective and made such a horrible whistling noise I thought my air pump was bad. The other 4 worked alright, they are a little tough to get the airline onto unless you're using the super flexible silicone kind. But I've had another one snap off at the neck when I was trying to change the line so durability is definitely limited. These fit standard airline tubing! ... show more
Reviewed in the United States on July 7, 2025 by Christopher Staton
    • Valves
Color: Red Pattern Name: 6 Pack
Excellent for the aquariums
Reviewed in the United States on August 13, 2026 by NIÑÖ

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