The 4131 Series Automatic Door Bottom is designed to prevent light, sound, and drafts from entering a room. It features a high-quality mechanism for smooth action when the seal is lowered. Available with different seal options (Nylon Brush, PemkoPrene, Sponge EPDM, and Sponge Silicone), and can be surface mounted or semi-mortised. Comes with installation instructions, end plates, and screws.

Features

• Non-Handed, Surface or Semi-Mortise
• Smoother action positive seal mechanism: Aluminum case encloses a movable drop-bar seal actuated by a jamb-contacting plunger during door closure, providing an effective seal
• Most models available with nylon brush (NB) seals. Nylon filaments conform extremely well to irregular surfaces such as carpet, stone and grout lines
• Some models can be mounted to either wood or hollow metal doors
• End plates are provided for all mounting applications
• Fills gaps up to 3/4"; Available in any size ranging from 18" to 48"
• Lead line available upon request
• Drop-bar seal actuation mechanism (all models) ensures hinge-side actuation, preventing seal skidding and door hang up during closure
• Provided at NET length
• Can be trimmed down by as much as 2" in the field (stock lengths only). If non-stock sizes are ordered, order must note need to trim 2 inches from the size ordered