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NATIONAL GUARD Automatic Door Bottom - Automatic Door Bottoms
NATIONAL GUARDAutomatic Door Bottoms

NATIONAL GUARD Automatic Door Bottom

The NATIONAL GUARD Automatic Door Bottom (Single Fin Insert, MPN 420NA-48") is a 48-inch long, 2 5/16-inch wide aluminum door bottom designed to seal the gap under a door. It features an aluminum construction and a…

SKU 3G-OTH-515141

Also listed as: 420NA48 · 420NA 48 · 420NA-48

Brand
NATIONAL GUARD
Item
Automatic Door Bottom
Part Number
420NA-48"
Category
Automatic Door Bottoms
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

NATIONAL GUARD
Manufacturer Part Number
420NA-48"
Type
Aluminum, Aluminum
Lg
48 in
Wd
2 5/16 in

Technical Documents

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NATIONAL GUARD Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The NATIONAL GUARD Automatic Door Bottom (Single Fin Insert, MPN 420NA-48") is a 48-inch long, 2 5/16-inch wide aluminum door bottom designed to seal the gap under a door. It features an aluminum construction and a single fin insert for effective draft and sound control.

Frequently Asked Questions

What is the NATIONAL GUARD Automatic Door Bottom 420NA-48 used for?

The NATIONAL GUARD 420NA-48 automatic door bottom seals the gap under a door to block drafts, dust, and sound. It is commonly installed on commercial or industrial doors in facilities requiring climate control or noise reduction, such as offices, labs, or plant entrances.

What are the specifications of the NATIONAL GUARD 420NA-48 door bottom?

The NATIONAL GUARD 420NA-48 is a single-fin insert automatic door bottom made of aluminum. It measures 48 inches in length and 2 5/16 inches in width. The aluminum construction provides durability and corrosion resistance for interior or sheltered exterior applications.

Where to buy the NATIONAL GUARD 420NA-48 door bottom worldwide?

3G Electric supplies the NATIONAL GUARD 420NA-48 automatic door bottom to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this item.

How to install the NATIONAL GUARD automatic door bottom?

Install the NATIONAL GUARD 420NA-48 by cutting it to exact door width, then mounting it to the bottom of the door using the provided screws. Ensure the fin insert contacts the threshold evenly when the door closes. Follow standard door-bottom installation practices for best sealing.

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NATIONAL GUARD Products

3G Electric supplies NATIONAL GUARD automatic door bottoms. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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This automatic door bottom seals the gap under a door to block drafts, light, and sound. It is commonly installed in commercial and industrial facilities to improve energy efficiency and room privacy. Constructed of aluminum with a single fin insert, it measures 36 inches in length and 1 3/8 inches in width

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