Federal Signal R4NB Speaker Back Box Kit
The Federal Signal R4NB Speaker Back Box Kit 4 Inch – Accessory for Federal Signal 50GCB SelecTone® ceiling mount amplified speaker.
Key features include:
- Reduces assembly time. Snaps on for fast installation
- Fits most style tee-bars which permits mounting 4 inch square or octagonal electrical boxes
- Mounting height of electrical box is adjustable for custom applications
- Bar is a U-channel for extra rigidity
- Independent dropwire from structure to support hanger for additional box support
- Product Code: R4NB
How to order (Specify Model):
| Model | UPC Code | Description |
| R4NB | 782979200567 | Back Box, Ceiling Speaker, 4″ |
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