NF300DWH - Door Speaker Retrofit Frame, 4-7/8w x 6-5/8h, projects 1-9/16 off surface, White
The NF300DWH Door Speaker Retrofit Frame is used in retrofit intercom installations when replacing a non-NM series NuTone door station. This retrofit frame fits the NDB300BB, NDB300AB, NDB300WH and NDB300N door speakers; intended for use with existing rough-in.