1 in OD|Low profile, unobtrusive appearance, blends with any decor or setting|Fittings have removable covers which allow easy access to wiring for changes and additions|Mounts onto 3-1/4 or 4 in conduit boxes or other recessed outlets|Cover accepts devices with mounting screw centers of 2-3/4, 3-1/2 in or 4-1/16 in|Can be used with 5736 blank cover as a pull or junction box|ScuffCoat finish, tough, durable scratch-resistant finish which can be overpainted with latex paint|Surface mounting eliminates disturbing the building structure or wall finish to make renovations easy|Full line of fittings provides unlimited wiring solutions and interconnection between raceway systems