Automatic Drop Down Seals(4 WAY-Best Design)

  • Length L-155CM
  • Drop down automatically when closing the door
  • Isolate smokes, dust, insects, noise,energy save.
  • Same DDS-155 could be installed for hinge or sliding door.
  • Same DDS-155 could be installed by concealed or exposed.
  • 30cm tolerance for door width from 125cm to 155cm.
  • Minimum length for DDS-155 would be 125cm after cutting.
  • Automatic drop range adjustable slightly and easier
  • Optional: Fire rated (customize).

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Product Features