Arlington says its non-metallic mounting brackets are perfect for installing low-voltage Class 2 wiring, and the seating wall plates flush with the mounting surface. The single-gang, low-profile LV1LP mounting bracket is intended for installations using 1/2-in. or 5/8-in. drywall installed on cast concrete or concrete block walls with furring strips. For existing construction, the LV1LP adjusts to fit 1/4-in. to 1-in. wall thicknesses.