Quick Release Thread Type: 1/4" BSP. 4 x 1/4"" BSP Female Thread. 4 x 1/4"" BSP Male Thread. 1 x 1/4"" BSP Fitting with Female Thread. 1 x 1/4"" BSP Fitting with Male Thread. ????When using the coupler(s) slide back the sleeve, push in the connector and then slide back the sleeve fully to lock in the connector.
