Pemko #420 Automatic Door Bottom, Mortised for Metal Door with Choice of Seals
This automatic door bottom is designed for the interior of hollow metal doors. It is built with a heavy duty mechanism that will ensure smooth operation. It is fitted with a set of two fire rated rubber seal. Available in a choice of rubber seals (see below for details).
To determine size required see How to Measure for an Automatic Door Bottom. Can be cut in the field an additional 2".
This automatic door bottom is fitted with set of fire rated double rubber seals. Adding this seal to the bottom of doors prevents drafts, dust, moisture, smoke, fire and sound from penetrating the gap under doors.
How it works: The door bottom utilizes a concealed flat spring mechanism which is activated when the door is closed and lowers the seal tightly against the floor or a saddle to create a strong and reliable seal. As soon as the door is opened, it automatically retracts in a smooth and “feather-touch” motion without causing a drag against the floor.
Options: The door bottom can be ordered with a PemkoPrene™, Silicone or Vinyl seals. See Understanding Rubber Seals for more details.
As with all our other high quality door bottoms, this is built to last! The aluminum casing is fully mortised and does not alter the appearance of the door, great for designer doors, hotels and luxury condos. It is designed to be applied to the underside of a hollow metal door and has a maximum drop of .5”. It is compatible with both a right or left handed door.
Installation instructions and screws provided.
Please note, images are for illustrative purposes only. They are not actual photos. Therefore, actual colors may vary slightly and size may be enlarged to show detail. See product specs for exact measurements.
This product has a 5 year guarantee against defects in material and workmanship.
Click here to view our full Warranty Policy.
Click here for other door bottoms For Hollow Metal Doors.
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QuickShipNo
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ManufacturerPemko Manufacturing
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MPN420PKL, 420SL, 420VL
- Product Design
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Seal TypePemkoPrene® Rubber Seal, Silicone Rubber Seal, Vinyl Rubber Seal
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Mounting TypeFully Mortised
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Door TypeHollow Metal Door
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- Dimensions
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Casing DimensionsDoor bottom measures 1-3/8" W x 13/16" H
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LengthCustom Cut to Size
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Drop SizeUp to .5" Drop
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Suggested Door Cut-OutDesigned for hollow metal doors with minimum 1.5" wide cavity.
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Door Thickness1-3/4" Thick
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- Installation
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HandingNon-Handed
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Installation ScrewsInstallation Screws Provided
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SizingTo determine sizing required see 'How to Size an Automatic Door Bottom'
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- Finishes
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FinishMill Finish Aluminum (US27)
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- Compliance Details
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Compliance DetailsAir Infiltration Rated, Sound Rated, BHMA Certified, Smoke Rated, Fire Rated, UL Classified, GreenGuard Gold Certified
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ANSI DesignationR3G324, R3G325
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Warranty5 Year Limited Warranty
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