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💧 Protect your pump, preserve your peace of mind!
The Pawfly 6 PCS Aquarium Air Pump Check Valves are precision-engineered one-way valves designed to prevent water backflow and protect your aquarium air pump. Made from durable clear plastic with a 0.15" air hole diameter, these compact valves fit standard tubing and come in a convenient six-pack. Ideal for aquarium air pumps (not CO2 systems), they ensure uninterrupted airflow and easy maintenance, making them a must-have for any serious fish tank enthusiast.














| ASIN | B01N92AXHF |
| Best Sellers Rank | #21,209 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,009 in Aquarium Accessories |
| Brand Name | Pawfly |
| Connector Type | Compression |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,643) |
| Exterior Finish | Plastic |
| Inlet Connection Type | Compression |
| Item Dimensions | 5.4 x 2.1 x 2.1 centimeters |
| Item Weight | 10 Grams |
| Manufacturer | Pawfly |
| Material Type | Plastic |
| Model Number | PF-Ap |
| Number of Pieces | 6 |
| Number of Ports | 2 |
| Outlet Connection Type | Compression |
| Size | 6 Pack |
| Thread Size | 3/16 inch |
| Thread Type | Compression |
| UPC | 712383629098 712383629555 |
| Unit Count | 6.0 Count |
| Valve Type | Check Valve |
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.
R**L
Got only 5 pcs
C**Y
3 of them were defective and couldn’t flow air, 3 were fine
E**O
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.
L**N
Perfect replacement parts
Trustpilot
1 month ago
1 week ago