Keep internal doors operating smoothly while maintaining a coordinated architectural finish. The Carbine Nidus Project Series Spring Round Passage Set Leverset combines spring-assisted lever action with a practical passage function, making it suitable for doors that require access without privacy locking.
- Spring-return lever action: Helps the handle return to position after use, supporting consistent operation and a neat appearance.
- Passage function: Provides straightforward access between connected spaces without the complexity of a locking mechanism.
- Round set design: Creates a balanced, understated profile that integrates cleanly with contemporary project interiors.
- Graphite Grey finish: Adds a refined dark-grey appearance that coordinates with modern door hardware, frames, and interior fittings.
Designed for project applications within the Carbine Nidus Spring range, this leverset is a practical choice for internal passage doors. Confirm the existing door preparation, latch arrangement, and required backset before installation to ensure compatibility.











