The CISA C3000 0N149 cylinder pair is designed for surface‑mounted locks and provides enhanced security thanks to its patented system, protected key, and bumping‑resistant construction. Key duplication is allowed only with the Security Card, ensuring controlled access.

Made of nickel‑plated brass, these cylinders offer durability and mechanical strength. The ALDE' key profile and the supply of 3 patented keys make this set suitable for residential and commercial installations. The 0N149 model (code 841708) is compatible with CISA lock series 11721 and 11921, making it ideal for replacements or upgrades without structural modifications.