Pemko #4131 Automatic Door Bottom, Aluminum with Choice of Seals, Narrow Casing, .75" Drop
This regular duty Automatic Door Bottom lowers a rubber seal when the door is closed to prevent infiltration of light, sound and drafts. The high quality mechanism of the door bottom ensures smooth action when the seal is lowered and fills gaps up to 3/4". Choice of rubber insert, finishes and mounting type. Length is custom cut to size.
PRICED PER ITEM
To determine sizing, see How to Measure for Automatic Door Bottom.
This Pemko #4131 Automatic Door Bottom lowers a rubber seal when the door is closed to prevent infiltration of light, sound and drafts. The high quality mechanism of the door bottom ensures smooth action when the seal is lowered.
It is designed for regular duty usage, in residential or low-frequency usage commercial settings.
Seals: Available with a PemkoPrene™, Sponge EPDM and Sponge Silicone insert.
- EPDM is comparable to Sponge Neoprene, though has significantly better performance and is more environmentally friendly! It has great sound control properties and is resistant to solvents.
- PemkoPrene™ has a multi-point contact design and is great for uneven surfaces such as a tiled floor or carpet. Due to the way PemkoPrene™ is manufactured, it is not as firm as sponge silicone and allows for more leniencies.
- Sponge Silicone has great overall performance, except in the area of soundproofing. All three options remain effective in a wide range of temperatures and can be used on external doors. The seal lowers to fill gaps up to 3/4".
Mounting: This automatic door bottom can be surface mounted or semi-mortised applied to the face of the door.
Installation: Installation instructions, end plates and screws provided. Screws are colored to coordinate with casing.
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 to view all our Surface Mounted Automatic Door Bottoms.
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QuickShipNo
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ManufacturerPemko Manufacturing
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MPN4131R, 4131S, 4131PK
- Product Design
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Seal TypePemkoPrene® Rubber Seal, Silicone Rubber Seal, EPDM Rubber Seal
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Mounting TypeSurface Mounted, Semi-Mortised
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Door TypeWooden Door, Hollow Metal Door
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- Dimensions
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Casing DimensionsCasing measures .594" (W) x 1.844" (H). Length is custom cut to size up to 72".
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LengthCustom Cut to Size
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Drop SizeUp to .75" Drop
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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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- Special Features
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Compatible Insert Replacement#SR6BL Sponge Silicone Replacement
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- Finishes
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FinishClear Anodized Aluminum (US28), Dark Bronze Anodized Aluminum (313)
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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 DesignationR3G334, R3G335, R3G344, R3G345
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Warranty5 Year Limited Warranty
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How it Works
The high quality automatic mechanism consists of an aluminum case which surrounds a moveable drop-bar seal. The drop-bar seal is actuated by a plunger which contacts the door jamb as the door is closing, forcing the drop-bar seal down against the floor / threshold. The plunger requires low "Feather Touch" closing force to actuate the drop-bar seal. The plunger causes the seal to always actuate on the hinge side first, which prevents the seal from skidding along the floor/threshold while the door is being closed. Door hang-up will not occur!
See also About Automatic Door Bottoms.
Click Here to Print Installation Instructions for Door Bottom and for End Plates.