Blood Pressure Connectors- Locking Type- Plastic Male Locking Adapter, 1/8″ (3.2mm) Hose barb. For Welch Allyn Propaq, GE Marquette two-tube and Datex-Ohmeda monitors (Datex-Ohmeda uses on male and one female connector on its two-tube monitors and cuffs). Packaging: 10/Bag.