ISO-A GAS 1" hydraulic quick coupler socket. ISO-A type hydraulic quick coupling with socket and GAS 1" female thread. It is designed to allow quick and clean disconnection and connection of hydraulic systems, and to protect them from the ingress of contaminants, which could cause damage or malfunction. Parameters: Standard: ISO-A Thread: internal GAS 1" B: 100 mm D: 56 mm CH: 41 mm