Unpainted Extension Back

BX(TYPE)U-(NW)(NH)
BX….. Extension Back
TYPE….. P=Pegboard, H=Hardboard
U…..Unpainted
NW…..Nominal Width 3′ or 4′
(914 mm or 1219 mm)
NH…..Nominal Height
06″ to 72″ in 6″ increments
(152 mm to 1829 mm
in 152 mm increments)