Designed to protect fragile surfaces, the NSI quick couplings are perfect for applications prone to scratching, and are ideal for using in various sectors such as automotive painting, body shops, aviation, and final automotive assembly lines. These quick connectors also guarantee high performance and user safety, as they come fitted with a 3-in-1 active safety feature to eliminate the risk of violent hose ejection under pressure. The NSI compressed air connectors conform to ISO 6150 C series for connection plugs and ISO 4414 for disconnection backlash prevention.