FESTO Pressure Hoses & Connectors Connector 612387 - FESTO 578271, The FESTO connector NPQH-L-Q6-E-P10, manufactured by Festo, is designed to handle pressures from -0.95 up to 20 bar. It is typically used for connecting pneumatic components in industrial automation systems. With its robust construction, this connector ensures reliable and efficient performance in various applications. FESTO 578271 NPQH Connector -0.95 to 20 bar push-pull L-plug 10 pcs