A range of pneumatic quick connect safety couplings and adapters from Prevost S1 series. Compatible with ARO profile 210 fittings. The S1 series disconnects and safely decompresses with one button and incorporates an aerodynamic valve seal design to prevent leaks and optimise airflow. S1 series pneumatic couplings can help reduce energy costs and increase productivity by eliminating any significant pressure loss and dramatically reducing downtime and maintenance.