420 Automatic Door Bottom - Pemko

PEM 420
Part #:
$51.89 - $65.81

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Product Overview

Pemko automatic door bottoms consist of an aluminum case which surrounds a movable drop-bar seal. The drop-bar seal is actuated by a plunger which contacts the jamb as the door is closing, forcing the drop-bar seal down against the floor or threshold. Provides an excellent seal to keep out draft, dust, moisture, insects, fumes, light and sound. Automatic door bottoms seal up to a 3/4" gap under the door. Surface and semi-mortise application, non-handed. Can be mounted to either wood or hollow metal doors.

Warranty Information

5 Years Limited


  • Device Type
    Maximum drop is 1/2"
  • Door Material
    Hollow Metal
  • Fasteners
    Sheet Metal Screws
  • Function
    For sealing a door to the threshold or floor surface
  • Hardware Finish
    Mill Finish Aluminum
  • Height
  • Insert
    Black PemkoPrene
  • Material
    6063-T6 Aluminum Alloy and Temper Retainer
  • Rated Opening Compliant
  • Series
    Pemko Automatic Door Bottom
  • Standards
    BHMA Certified, ASTM E 90, UL 1784, UL10C, UL 4L10, GREENGUARD Gold
  • Unit of Measure
  • Width