Reddit reviews iMBAPrice BE2-2 (2-Gang) Electrical Power Outlet Box Extender - White, 2-Pack (Made in USA)

Allows the contractor to comply with 2005 NEC Article 314 20. Functions with all standard devices Switches, and GFCIsWorks in handy boxes and 4 Inch square electrical boxes with plaster rings for single switches or receptacleManufactured from 105 degree C continuous use 94VO rated flame retardant plastic for safer installationsManufactured from 94VO rated flame retardant plastic for safer installations, two hour fire ratingLevels and supports the wiring device where the box is set back from the wall surface (adjusts up to a 1-1/2 Inch box extension)