We designed these Luers Adapters to make it easy to create your own quick connect Union or Adapter. This natural, color, Delrin , Quick Connect Luer Adapter has a Female Luer to Male thread connection and a 1/4-28 Flat-Bottom port configuration. This Quick Connect Luer Adapter conforms to ISO requirements for medical luer taper configurations and performance (45psi/3.1 bar).