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Choose from the Largest Selection of High Quality Automatic Door Bottoms with options of Surface Mounted, Semi-Mortised and Mortised and different finishes and sizes.
The 4301 Series Non-Handed, Semi-Mortise and Full Surface Automatic Door Bottom is a heavy-duty solution for preventing air, light, sound, fire, smoke, dust, and moisture from entering the gap under doors. It features a drop-down seal that is lowered when the door is closed.
Pemko - 4131CRL36 Aluminum Automatic Door Bottom, Clear Anodized, Insert, 19/32”W x 36"L x 1-27/32”H. Brand: Pemko. 4.2 123 ratings. Amazon's Choice. $6766. FREE Returns. Available at a lower price from other sellers that may not offer free Prime shipping. About this item.
TMS Automatic Door Bottom, Heavy Duty Door Seal - Acoustic Door Sweep - Surface Mounted (36” - Clear Anodized Aluminum)
From ease of installation to hassle-free performance, the patented technology in ZERO automatic door bottoms deliver superior results. They ensure an efficient seal with an adjustable plunger that is compressed against the frame as the door is closed, activating a concealed flat spring mechanism.
The Pemko STC411™ automatic door bottom is the latest design for high-quality performance in acoustic control and sound attenuation. The newly designed spring assembly increases the pressure applied on the drop bar across the entire length of the automatic door bottom, maximizing seal performance.
Our Automatic Door Bottoms can be made to fit any sized door up to 48″. We offer a surface mounted unit, as well as a mortised and semi-mortised version. Surface mounted bottoms install without removing the door from its hinges.