ncludes one prewired 20A duplex receptacle which can be wired as a standard receptacle or isolated ground. Finish flange available in gray (GY) black (BK) ivory (VY) brushed aluminum (AL) and brass finish (BS). Aluminum and brass flanges standard with black cover. Aluminum flange also available with an aluminum colored nonmetallic cover (AA). Brass flange also available with a brass colored nonmetallic cover (AB). Includes one adpater to accept Legrand AVIP or Extron Electronics MAAP mini architectural adapter plates Wiremold Open System adapters and Ortronics TracJack and Series II mounting adapters. Modular Jacks sold separately. AV3 Series Poke-Thru Devices require a 4" (102mm) diameter hole. Not designed to work with bare concrete or terrazzo. Floor covering thickness 1/8" minimum.