PUSH-PULL GAS 1/2" hydraulic quick coupler socket. PUSH-PULL type hydraulic quick coupling with socket and GAS 1/2" female thread. - A type of connector for connection and disconnection under pressure. It is designed to allow quick and clean disconnection and connection of hydraulic systems, and protect them from the ingress of contaminants, which could cause damage or malfunction. Parameters: Type: PUSH-PULL Thread: internal GAS 1/2" B: 108 mm C: 44 mm CH: 27 mm