The fully skirted subbase conceals wiring while providing strong support, if needed. Plug-in receptacle and field-wiring access speeds installation.Electrical accessories, such as fuse holders, circuit breakers and disconnect switches meet NEC requirements.Subbase may be installed onto wall sleeve either before or after sleeve installation. Minimum clearance between wall sleeve bottom and finished floor is 3 3/4; maximum height clearance from bottom of wall sleeve and finished floor is 5.Minimum clearance between wall sleeve flange and finished wall is 2 3/4.