I am looking to get a bg12 backbox for my mini system cant find one on ebay
You can use any standard single gang, double gang or 4" square electrical box. If you’re looking for a genuine backbox, PM me. I might have one.
Mhm: one advantage of using standard backboxes is that you can mount any device to them, rather than just the ones specific backboxes are intended for.
This is the bg-12 back box Surface Mount Back Box Indoor/Outdoor Red SB-I/O New in box 783008105433 | eBay