McBride back boxes are rust resistant and made of heavy gauged galvanized steel. All SMC series back boxes have a satin white baked powdered epoxy finish. This solid back version has combination knock outs and a variety of mounting holes to allow for precision alignment while mounting. The SMC20EWB is a surface mount square back box that can be used with the square McBride baffles.
Model Number: SMC20EWB
Overall Width: 12 7/8"
Mounting Hole Dimension: 11"
Overall Depth: 4"
Compatible Baffles: MC25, MC25NP, MC25P, and MC25SQ