Pemko 4301CRL Surface and Semi-Mortise Automatic Door Bottom


Usually Ships: 2-3 Days
  • 36″ Length, Surface and Semi-Mortise
  • Sound and Air Infiltration Tested
  • Fire-Rated and Smoke Tested

Smoother action positive seal mechanism. All 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 that contacts the jamb as the door is closing, forcing the drop-bar seal down against the floor/threshold.

  • WIDTH: 29/32” (23.0 mm)
  • HEIGHT: 1-25/32” (45.2 mm)

4301CRL: C – Clear Anodized Aluminum with Black Sponge EPDM insert


  •  Air Infiltration Tested
  •  Sound Tested – ASTM E90
  •  BHMA Certified
  •  Smoke Tested – UL1784
  •  Fire Rated – UL10C – Positive Pressure
  •  Underwriters Laboratory 4L10
  •  GREENGUARD Gold Certified





C – Clear Anodized Aluminum

Fire Rating

UL/cUL listed