System Sensor B224RB-WH Plug-in Relay Base (White)
$68.00
The System Sensor B224RB-WH is a White Plug-in Relay Detector Base.
Mount directly to 4" square (with and without plaster ring), 4" octagon, 31/2" octagon, single gang and double gang junction boxes.
NOTE: B224RB-WH and B224RB-IV replace the previous model number B224RB.