A door closer is a mechanical or automatic device that closes a door, in general after someone opens it, or after it was automatically opened.
The 4811-STD AUTO EQUALIZER is LCN’s pneumatically powered MULTI-DOOR solution. This lowenergy automatic operator provides easy access for people with disabilities, the elderly, or the frail. Designed primarily for manual opening applications that occasionally require automatic opening. Learn More$1,032.11