Gardena 39017 Premium Metal Female Garden Hose Connector, 5/8" & 1/2", Nylon/ABS - 5/8" x 1/2" - Bed Bath & Beyond - 19857643
Amazon.com : GARDENA 36004 5 Piece Quick Connector Starter Set, For any 5/8 Inch or 1/2 Inch Garden Hose, Sprinkler or Spray Nozzle, Made In Germany : Garden Hose Parts : Patio, Lawn & Garden