Wiring Duct, Wall Type Narrow Slot, Gray, Flame Retardant PVC, Length 6 ft., Width 2.25 In., Height 3.14 In., Slot-to-Slot Centerline 0.50 In., Slot Width 0.20 In., Slot Height 2.18 In., Mounting Style Screw Mount, Standards NFPA-79-2002, UL508/UL508A, DIN 43 659