Pemko 0.875 in. x 36 in. Standard Perimeter Gasketing

Clear Anodized Aluminum And Sponge Neoprene meets ASTM Air Infiltration and UL Smoke Labeling Requirements. Use On UL Listed Steel Frames And/or Classified Swinging-Type Fire Doors. It Includes One 36 in. Top Strip And Two 84 in. Side Strips - 1-1/8 in. Overall Height - Fire-Rated Up To 3-Hours For Hollow Metal Or Steel Doors And 1-1/2-Hours For Wood Core Doors.|Smoke tested|Fire rated UL 10 C|GREENGUARD Gold certified|Air infiltration tested|All season protection against drafts, moisture, dust and insects|Vinyl bulb compresses against top and sides of door to provide tight seal