NGP (National Guard) 225S Full Mortise Acoustic Automatic Door Bottom

Usually Ships: 3-5 Business Days
  • 7/8″ max drop
  • Mortise required in bottom of door
  • Fire-rated, sound and air infiltration tested

Available Options:

Clear

National Guard Products (NGP) 225S Mill Aluminum Mortise Automatic Door Bottom with Silicone Seal

  • BHMA certified to ANSI/BHMA A156.22, 1,000,000 cycle test-grade 1
  • BHMA certified to ANSI/BHMA A156.22 performance tests for heat and cold
  • Aluminum alloy 6063, T5 temper
  • Synthetic rubber polymer: Siloxane closed cell sponge
  • Excellent flexibility and memory
  • Flame resistant
  • Moisture resistant
  • Temperature range -100°F to 500°F, remains flexible at extreme temperatures
  • Excellent resistance to ozone, UV and aging
  • Recommended for areas using FM200 or Halon Fire Suppression Systems
  • Use with a threshold for maximum sealing capability
  • Nylon brush recommended for carpet applications where no threshold is provided
  • Specify exact net length required to avoid field sizing
  • 36″ and longer may be cut up to 4″ in the field. Under 36″ should not be cut in the field, order net length
  • 36″ and longer are furnished 1/2″ shorter than ordered to fit within net door size. (i.e. 36″ is furnished 35-1/2″)
  • Available 11″ net to 60″ in length
  • End caps furnished standard
  • Mortise required 3/4″ x 1-15/16″
  • 7/8″ max drop
  • Silicone is gray
  • Mill aluminum

made-in-usa

Brand

Length

36", 48"

Finishes

Mill Finish Aluminum

Fire Rating

Fire Rated – UL10C – Positive Pressure

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NGP (National Guard) 225S Full Mortise Acoustic Automatic Door Bottom