OPTUM | GENAIR Bleeder ValveOccasionally our customers need to reduce the air flow to their diffuser for a variety of reasons. This is easily done with our "Bleeder Valve" you see here. Simply connect your airline, turn the system on and then open the valve to "bleed" air off as needed. For use with any of our OPTUM air compressors. The barbed fittings on the valves are set up to use our 1 2" ID AquaLINE self sinking pond tubing.