The Campbell Hausfeld ST079705AV Unloader Tube is a 1/4-inch diameter, 20-inch-long replacement tube designed for Campbell Hausfeld unloader systems. It is compatible with Campbell Hausfeld models ST079705AV and ST117803AV, and functions as the tube component within the compressor’s unloader valve assembly. In operation, the unloader tube channels air during unloading to vent the pump and enable a controlled shutdown of the motor. As a genuine Campbell Hausfeld replacement part, this tube supports repair or refurbishment of compatible units to preserve unloading performance.
