Description
Molded of engineering grade non-metallic thermoplastic. Adjustable, no need to remove or relocate mounting screws to reposition the box. Slots retain slider plate and guide it in a straight motion. Internal rails guide slider plate for smooth mounting adjustability in-wall substrates from 1/2 to 1-3/8 in THK and ceiling substrates from 1/2 to 1-5/32 in. Square corner design allows easy wall cut-in (Old work applications). Molded spline device holes for quick device screw installation. 23 cu-in volume, 1/2 in knockout. Internal steel, stud/wood screws. 3-3/4 in H x 2-1/4 in W x 3-9/16 in D. UL Listed for 2 hr fire resistive walls and ceilings.