This bleeder valve is a genuine OEM sourced part that is specially designed for use with Rolair air compressors. The bleeder valve allows some air to escape until the air in the tank reaches a certain level. Unfortunately, over time components may wear out or get damaged eventually requiring a replacement. Please note, this high-quality c...Read moreomponent is sold individually. A wrench will be needed to perform this repair. Make sure to drain the air from the tank and unplug the equipment from the power source before starting this repair.