Genie 3120 Garage Door Opener 39524R Battery Back Up 39524R PBB-BX
Genie PBB-BX Garage Door Opener Battery Back Up 39524R. Part number: 39524R. Compatible with Genie garage door opener models: 3020, 3020H, 3120 and 3120H. Compatible with Genie models 3020, 3020H, 3120 and 3120H.