Professional multi-ball locking connector. Fully metal housing. High wear resistance. Thanks to the new type of locking, minimal resistance to air flow is ensured. Type EURO 10.4 mm. Maximum air flow 72 cfm-57 l/s (Delta 7.2 psi/0.5 bar). Economical air flow 78 cfm-37 l/s (Delta 2.9 psi/0.2 bar).