Pemko 321SSN Stainless Steel Door Bottom Sweep with Neoprene Insert

Usually Ships: 10-15 Business Days
  • #4 Finish, Stainless Steel
  • Seals against smoke, fire, air, sound, and weather
  • 36″ or 48″ length (full-length; field-cut to Size)

Available Options:


Pemko 321SSN Stainless Steel Surface Plate Door Bottom Sweep with Neoprene Insert, #4 Finish

The 321 Series Surface Plate Neoprene Door Sweep is designed to provide insulation and prevent the infiltration of moisture, fire, smoke, sound, and light. It features a .938″ neoprene extrusion, which is smoke, fire, and air infiltration rated.

  • Reduces the infiltration of light, air, wind, rain, and snow; prevent heat loss; and control the penetration of smoke and fumes
  • Outstanding resistance to abrasion, hydraulic fluids, alkalis, heat, ozone, weather
  • Resistant to polar substances and steam
  • Slotted holes for easy adjustment
  • Recommended compression of gasket is 1/16″
  • Fitted with a neoprene synthetic rubber extrusion
  • Surface applied
  • Seal up to a 7/16″ the gap between the door and threshold or to the floor surface
  • Not recommended in situations that involved significant gasoline or other fuel oil, kerosene, propance, or mineral oil


  • UL 1784 – Standard for Air Leakage Tests of Door Assemblies and Other Opening Protectives
  • UL 10C – Standard for Positive Pressure Fire Tests of Door Assemblies
  • ASTM E-283-04 (2012)
  • ANSI/BHMA A156.22 Door Gasketing and Edge Seal Systems


Stainless Steel


36", 48"

Fire Rating

Fire Rated – UL10C – Positive Pressure

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Pemko 321SSN Stainless Steel Door Bottom Sweep with Neoprene Insert