Pemko 4131_RL Surface and Semi-Mortise Automatic Door Bottom

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

Available Options:

  • Anodized Aluminum
  • Dark Bronze

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: 19/32” (15.1 mm)
  • HEIGHT: 1-27/32” (46.8 mm)

4131CRL: C – Clear Anodized Aluminum with Black Sponge EPDM insert
4131DRL: D – Dark Bronze 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



36", 42", 48"


C – Clear Anodized Aluminum, D – Dark Bronze Anodized Aluminum

Fire Rating

UL/cUL listed