Pemko 411ARL30 Full Mortise Automatic Door Bottom 30 in

Product Description

The PEMKO 411ARL30 is a full mortise automatic door bottom designed to provide a weathertight seal at the base of a door when it closes. The unit drops a sponge neoprene seal into contact with the threshold or floor surface automatically as the door swings shut, then retracts when the door opens to prevent drag. Finished in mill aluminum, this door bottom suits commercial and residential applications where draft control, sound attenuation, or light blocking is required. It is installed by licensed carpenters, door hardware specialists, or general contractors working on new construction or retrofit projects. The 411ARL30 covers a 30-inch door width opening.

This automatic door bottom is suited for interior and exterior door applications where a mortise-mount installation is specified. It fits doors requiring a recessed, or mortised, channel cut into the bottom rail of the door, making it a clean, concealed solution preferred in commercial buildings, offices, hotels, and multifamily residential construction. It is appropriate for wood doors with sufficient bottom rail depth to accept a full mortise unit. No specific compatible door model numbers were provided by the manufacturer in the available data.

Key Features

• Full mortise design installs flush into the door bottom rail for a concealed, clean appearance
• Sponge neoprene seal compresses against the floor or threshold surface for reliable draft and sound control
• Automatic drop-and-retract action activates on door closure without manual adjustment
• Mill finish aluminum housing resists corrosion and suits unpainted or field-finished applications
• 30-inch length accommodates standard 2 foot 6 inch door widths

Compatibility

Designed as an OEM-style replacement or new-installation component for full mortise automatic door bottom applications on wood doors with a 30-inch bottom rail width.

Installation Notes

Installation requires routing or mortising a precise channel into the bottom rail of the door to accept the full mortise housing. Power down any associated access control or door hardware circuits before beginning work. A licensed door hardware installer or finish carpenter should perform the mortising and fitting to ensure proper seal contact and smooth automatic actuation. Verify floor flatness and threshold height before finalizing installation to avoid seal wear or binding.