The selected region shows a hydraulic quick-disconnect coupling set with ZG3/8 threads and yellow protective dust caps.Product OverviewType: High-pressure hydraulic quick-connect/release coupling (male and female pair).Thread Size: Standard ZG3/8 (19 TPI).Material: Chrome-plated steel with hardened locking sleeves.Pressure Rating: Typically rated up to 70 MPa (700 Bar / 10,000 psi), commonly used with hydraulic pumps and porta-power tools.