What's included: The package contains a 1.5-meter transparent medical grade hose and two matching fittings. Size: Each joint has an inner diameter (ID) of 0.3 inches and an outer diameter (OD) of 0.45 inches, ensuring a tight connection to a variety of breathing equipment and reducing the risk of air leakage. Application: Suitable for hospitals, clinics and other professional medical environment. Design: The transparent design of the product facilitates the observation of the internal airflow, ensuring the safety and comfort of patients. Date First Available January 17, 2025