The BRZ1000 Braze Right Purging Adapter Quickly Connects to the Manifold Gauge Hose, and Slips Easily and Securely into the ACR Pipe, Allowing for Bleed of Nitrogen through the Pipe being Brazed, Keeping the Pipes Clean and Oxide Free. The BRZ1000 is Stepped to fit most Common ACR Pipe Sizes, making it Fast to go from one Tube to the next. No more Duct Taping your Hoses to the Pipe!