Pack of 5 Air Valves
Air valves are a great and easy way to regulate the amount of air reaching your in tank air filter or aerator. These are tightly threaded to ensure no air leaks out the top.
To use, simply insert one end into the tubing coming from your air filter and the other end in tubing leading to your filter/aerator. Then tighten the screw down until you reach the desired air pressure.