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Pemko 411ANBL36 Automatic Door Bottom Full Mortise 36" Length Mill Finish Aluminum

  • SKU: 411ANBL36

Pemko 411ANBL36 Automatic Door Bottom Full Mortise 36" Length Mill Finish Aluminum

  • SKU: 411ANBL36
Sale price$78.45/ea
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In Stock
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Pemko 411ANBL36 Automatic Door Bottom - 36" Length Full Mortise Mill Finish Aluminum


  • Smoother action positive seal mechanism. All Pemko automatic door bottoms consist of an aluminum case that surrounds a movable drop-bar seal. The drop-bar seal is actuated by a plunger that contacts the jamb as the door is closing, forcing the drop-bar seal down against the floor/threshold.
  • Most models are now available with nylon brush (NB) seals. The nylon filaments conform extremely well to irregular surfaces such as carpet, stone, and grout lines.
  • Especially over uneven surfaces, both PemkoPrene (PK) and nylon brush (NB) provide excellent seals to keep out drafts, dust, moisture, insects, fumes, light, and sound.
  • All models are non-handed and reversible. Installation is fast and easy because disassembly is not required to change handing: simply flip the automatic door bottom and you"ve reversed the hand. The clean symmetrical square-shaped case design also provides for even flush mounting.
  • The line includes models which can be mounted to either wood or hollow metal doors.
  • End plates are provided for all mounting applications.
  • All Pemko automatic door bottoms seal up to a 3/4" gap under the door except PDB-series, 420, and residential models which seal 1/2" maximum.
  • Available in any size ranging from 24" to 48".
  • Leadline available upon request; consult Customer Service for options on profiles.
  • The drop-bar seal actuation mechanism (all models) causes the drop-bar seal to always actuate on the hinge side first. This feature prevents the seal from skidding along the floor/threshold while the door is being closed. Door hang-ups will not occur.
  • All Pemko automatic door bottoms are provided NET length.
  • This automatic door bottom is supplied with a Nylon Brush ("NB") insert - item number P516041.
  • The standard color for this part is black, but it is also available in gray.
  • Smoke Tested - UL1784 - tested in accordance with UL 1784-2001 Air Leakage Tests of Door Assemblies, and meet the performance criteria for allowable air leakage as specified in NFPA 105-99 Installation of Smoke Control Door Assemblies. Meets the requirements for category H - Smoke Seals.

Available Finishes:

Mill Finish Aluminum with Black Nylon Brush insert


9/16" (14.3 mm)


1-3/8" (34.9 mm)

Insert Type:

Black Nylon Brush





BHMA Certified


Underwriters Laboratory 4L10

Fire Rated - UL10C - Positive Pressure

Other Certifications:

Air Infiltration Tested

Sound Tested - ASTM E90

Smoke Tested - UL1784

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