Features and Benefits:•Upgrade welder to more robust design.•Interlocking flange helps prevent sheared connection pins.If you purchased an 8000 series or 8200 series welder that was built before September 2020 and you need a hose, bulkhead connector, or handle, you will need to upgrade to this improved design. The new bulkhead connector, handle, and hose will NOT fit welders built before September 2020, and we no longer have any hoses, bulkhead connectors, or handle parts for welders built before September 2020.