Three Gang Pathway Wall Plates, Rectangle, Length 12 In., Width 2 In., Height 6 In.Color Silver, Material Steel, Includes Wall Labels Fire Barrier ProductsCable Pass-Through DevicesIntumescent material expands rapidly when exposed to fire or high heat to quickly seal pathways. STI EZ Path devices eliminate the need to remove and reinstall or adjust fire-stop materials. EZ Path devices are UL Classified, FM Approved, meet NFPA Code 101 standards, and Class L smoke rating, and have up to a 4-hr. fire rating when test11ed in accordance with ASTM E814; 6LE11, 3BE71, and 13P639 include the EZ Path device and 1 set of wall plates and labels. 3BE73 and 3BE74 wall plate kits include 1 pair of wall plates with labels. 3M brand pass-through devices are hinged for easy retrofit installation around cables and have a 4-hr. fire rating when test11ed in accordance with ASTM E814. UL Classified and Class L smoke rating. Meet NFPA Code 101 standards.