CLEARANCE Zero #364, Automatic Door Bottom, Mortised, Heavy Duty with Neoprene Bulb Seal, 1" Drop
This Zero International #364, Fully Mortised, Heavy Duty Automatic Door Bottom will block sound, light and drafts by creating a strong seal at the bottom of your door. Fitted with a solid neoprene bulb seal and high quality mechanism that has been successfully tested through 5 million cycles! Rated for smoke and fire and length is custom cut to size.
CLEARANCE ITEM - Available in Aluminum finish, 29.75" Length. For complete product with a choice of finish and size, see our Zero #364, Automatic Door Bottom.
CLEARANCE ITEM - Available in Aluminum finish, 29.75" Length. For complete product with a choice of finish and size, see our Zero #364, Automatic Door Bottom.
The fully mortised aspect of this automatic door bottom is great for high end designer doors and luxury hotels and condo units that prefer their doors retain their clean, unobtrusive look.
Dimensions: Body measures 1.575" H x .924" W. Extended flanges on both sides measure .371". Total Width is 1.6". Compatible with doors with a thickness of at least 1.75".
Suggested Door Cut-out: 1" x 1-5/8"
Finishes: Clear Anodized Aluminum - Anodized to 204
Seal: High quality solid neoprene bulb with a maximum effective drop of 1". Interior is rubber filled for added protection.
Compliance Details: Sound, fire and smoke rated (see product data tab for more details)
Handing: Compatible with right and left handed doors.
Installation: Installation instructions and screws provided.
Sizing: To determine sizing, see How To Measure For An Automatic Door Bottom.
Please note, images are for illustrative purposes only. They are not actual photos. Therefore, actual colors may vary slightly and size many be enlarged to show detail. See product specs for exact measurements.
This product has a 1 year guarantee against defects in material and workmanship.
Click here to view our full Warranty Policy.
For even higher sound control, see our Zero International #369 Automatic Door Bottom, High Sound Mortised.
The Automatic Door Bottom utilizes a concealed flat spring mechanism which is activated upon opening and closing of the door. A brass plunger is compressed when the door is closed to automatically drop the seal, starting from the hinge side first. The seal is raised when the door opens. This motion ensures a smooth drop without a drag, even on an uneven surface. It is compatible with a door saddle or against the floor. The door bottom is built from durable materials that are meant to last. It has been tested through 5 million cycles!
See also About Automatic Door Bottoms.
Click here for a Printable Copy of How to Install a Mortised Automatic Door Bottom.
Automatic Door Bottoms are available with three mounting options: Surface Mounted, Semi-Mortised and Fully Mortised. A surface mounted application can be applied without removing the door from its hinges. For a semi-mortised, if the rabbet in the door is cut-out already, the door does not need to be removed. For a fully mortised application the door should be removed before starting. |
STEP 1: PREPARE YOUR DOOR BOTTOM Remove door and cut mortise in bottom of door as per the dimensions of the provided product specs. NOTE: If a door is fire labeled or of special construction, mortise preparation must be done by the door manufacturer. |
STEP 2: MEASURE AND TRIM YOUR DOOR BOTTOM Measure your door from side to side. That will determine the length required for your Door Bottom. |
Once you have you determine the size needed, if necessary, trim your door bottom. Use a chop saw or table saw to create a perfectly straight cut. Note, Only trim opposite the actuating plunger, brass nut. (Trimming from the brass nut side will ruin your ADB). You can trim from the edge up to one inch of the screw on the side wall of the ADB. |
STEP 3: APPLY YOUR AUTOMATIC DOOR BOTTOM With door removed from opening, install the door bottom with plunger at the hinge side, fasten with screws provided and install door in opening. |
STEP 4: ADJUSTING YOUR AUTOMATIC DOOR BOTTOM Screw the actuating plunger in or out as required until the gasketing just touches the sealing surface when the door is closed. It is not necessary to squash the gasket to provide an effective seal. |
Once you have followed through with all the instructions your Automatic Door Bottom is good to go! Enjoy years of quality sound, draft and light infiltration control with your new door bottom. |