CareFusion U/Adapt-It™ Disposable Straight Connector 22mm O.D. x 22mm I.D, Latex-free, with Thermometer Port Our straight connectors without base feature a 22mm O.D. connection at one end and a 22mm I.D. connection at the other. Connector 004154 includes a one-way valve. Connectors are shipped clean and ready to use