The AP777B from Alpha is a Blank Adapter Plate-5.5″X12.5″, Cold Rolled Steel Plate With White Powder Coated Paint Finish – Supplied Less Screws. The Alpha AP777B adapter plates are designed specifically to cover existing over-sized apartment intercom back boxes and other existing wall openings. Once the adapter plate is affixed to the wall, you can install your open-voice or handset apartment intercom station or surface mount video-intercom station directly onto the adapter plate. Installation is quick, easy, attractive and eliminates the need for plastering and painting over the existing hole.
In model AP777B there are no mounting holes on the front of the faceplate. This enables you to punch or drill any special holes you may need, or to leave the faceplate totally blank.
Alpha AP777B Adapter Plate Features
- Heavy Duty: 22 Gauge Cold-Rolled Steel Faceplate ensures durability and long-lasting use.
- Easy Installation: Pre-punched holes make for a hassle-free setup process.
- Decorator White Color: A clean and modern look that fits well with any decor.
- High Quality Finish: Powder Coat Painted Finish provides resistance to wear and tear.
- Rugged Design: Combines strength with aesthetic appeal for an attractive installation.
- Large Size: Neatly covers existing wall openings, providing a tidy solution.
- Versatile Compatibility: Works with a variety of apartment intercom and video intercom stations and handsets.
Alpha AP777B Detailed Specifications
| Feature | Details |
|---|---|
| Material | Cold Rolled Steel |
| Gauge | 22 Gauge |
| Dimensions | 5.5″ x 12.5″ |
| Finish | Powder Coated White |
| Mounting Holes | No pre-drilled holes |
| Usage | Cover oversized intercom back boxes |
| Compatibility | Open-voice and handset intercom stations |



















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