NuTone LA120K Decorative Wired Two-Note Door Chime, Light Oak,Broan-NuTone,LA120K" /> Dimensions: 6-1/4-Inch x 8-1/8-Inch Oak finish on a molded cover with vertical grooves Uses a16-Volt transformer(C905), sold separately Can easily replace existing two-note chime without rewiring Dimensions: 6-1/4-Inch x 8-1/8-Inch Replaces Broan RC121K