T6 aluminum, USA made, quick-connect leak free fitting. Includes internal automatic shut-off valve to prevent leakage once disconnected from CAC circuit.  Fluorocarbon internal seals.  Attached directly to end of The "Cooler Bleeder's suction hose through swiveling AN flare.
 
Works in conjunction with QC1, GHT1, CAP1, CPR1, and/or RES1 plugs.  See Connection Chart for fitments