Pawfly Aquarium Check Valves: Keep Your Air Pump Running Smoothly

Ann Marre: Nice to have backup ones just in case

United States on Oct 22, 2023

Gabrielle Wright: These are working fine so far, fit my standard airline tubing. Shipping was fast.

United States on Aug 08, 2023

JimM: I use these to ventilate water bottles that I drink from through a hose (like a CamelBak system, but from a bottle instead of a bladder). I drill a hole in the cap for the hose, and another for one of these check valves. This keeps the bottle from spilling, but lets air in so that the bottle doesn't collapse when I drink. These valves are very simple and easy to clean. The two-piece housing is threaded, and the valve itself is held between the halves. I use a short piece of plastic tubing on the valve nipple to make a tight fit with the hole I drill in the bottle cap.

United States on Jan 07, 2021

jami: Like that they’re threaded so you can mess with the rubber falange if it starts making noise. I actually like that they’re bigger than what you’d find at LFS seems to allow better airflow! Great for the price!!

United States on Jan 08, 2020

MotherMyBowlisEmpty: So uh... They work fine. Sir goes in one side and out the other, but not the reverse. That's what they're supposed to do.

But they whistle. Anyone else hear it? It's freaking loud. Hopefully I get used to it quickly or I'll be looking to replace these with hopefully quieter ones.

I have one installed between my air pump and sponge filter, and one between the air pump and air stone.

United States on Jan 05, 2020