This dual gang low voltage surface mount box is the final piece to complete your raceway installation. Featuring cut-outs (knockouts) for 3/4 inch, 1 1/4 inch, and/or 1 3/4 inch raceways, you now have the ability to add a pass-through or other faceplate at any point in a raceway run. Simply mount the backplate to the wall and cut out the corresponding pattern for the correct raceway size. Screw the top of the box to the mounting plate with the included screws. With knockouts in both the vertical and horizontal positions, this surface mount box continues the raceway system's fully customizable feature. A sharp blade will make quick work of cutting out the appropriately sized notch for the raceway you are using.