National Guard Products (NGP) 423N Mill Aluminum Heavy Duty Mortise, Automatic Door Bottom with Neoprene 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

POSITIVE PRESSURE - CERTIFIED by UL to ANSI/UL10C, complies with IBC, NFPA 80 and NFPA 252 for application to Hollow Metal fire doors rated up to 3 Hrs., and Wood fire doors rated up to 90 minutes. AIR INFILTRATION TESTED to ASTM E283, Standard Test Method for Determining Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors.

1-1/2 HOURS FOR MODEL 423N. CATEGORY H Smoke and Draft Control gasketing (Category H) tested to UL 1784; meets requirements of NFPA 105, IBC for use on “S” label doors. 12.19

National Guard Products 423N 36" Automatic Door Bottom, Heavy Duty, Length: 36", Mill Finish Aluminum with Black Neoprene insert, Max Drop: 3/4", Mortise Mount

ailable 11" to 48" in L.

Automatic door bottoms mount onto the bottom of a door and lower a seal along the length of the entire door when it's shut, but automatically raise to allow the door to swing open. They create a tight seal that prevents drafts, dust, insects, and other unwanted elements from entering the building or room.

NGP 423N Mill Aluminum Heavy-Duty Mortise Automatic Door Bottom with Neoprene Seal. Product Features. BHMA certified to ANSI/BHMA A156.22, 1,000,000 cycle test-grade 1; BHMA certified to ANSI/BHMA A156.22 performance tests for …

New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, …

NGP 423N heavy duty neoprene automatic door bottom with three quarter inch drop bumper seal, mortise mounted for heavy duty, high traffic door projects.

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