【High Quality Material】: Our 4 inch diameter round electrical box old work are made of thick PVC plastic, high temperature resistant to 2 hours firewall, durable
【Use】: Our PVC round old work ceiling electrical box can be used to the close connection of the wire, can be used in the lamp box, ceiling box and other old works transformation
【Easy Installation】: Our blue ceiling box are simple design, easy to understand, one person can complete the installation and disassembly
【Flanged Configuration】:Our ceiling box is equipped with adjustable tabs that can be used to fit into existing structures, which allows our boxes to better adapt to different installation environments
【Product Size】:Round electrical box in 4-1/4",1-gang,weighs 101g,volumes 18 cubic inch,AWG for 9/14,8/12,7/10
