Innovative full-opening model. Minimal air flow resistance. Durable, shatterproof model for harsh operating conditions. High wear resistance. Easy and secure connection. Type EURO 7.6 mm. Maximum air flow 79 cfm-37.5 l/s (Delta 7.2 psi/0.5 bar). Economical air flow 53 cfm-25 l/s (Delta 2.9 psi/0.2 bar).