YDB309 Automatic Door Bottom

These 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.Automatic door bottom is designed for easy, precise installation, with a minimum of parts subject to wear.High-level sound control achieved with unique, patented design features.Available as surface-applied door bottoms and concealed door bottoms in a range of models.


·         When the plunger contacts the jamb, the drop bar seal actuates from the hinge side first allowing multiple compression points.
·         The plunger requires low "FeatherTouch" closing force to actuate the drop bar seal.The "L" at the end of all product numbers stands for Low closing force.
·         End plates are provided for all mounting applications.
·         Available in sizes ranging from 18" to 72"
·         All automatic door bottoms are provided net length.
·         Stock length automatic door bottoms can be trimmed as much as 2".