NATIONAL GUARD Automatic Door Bottom: Single Fin Insert, Aluminum, 48 in Lg, 2 5/16 in Wd
The NATIONAL GUARD Automatic Door Bottom is a single-fin insert model (MPN 420NHMDKB-4) made of aluminum, measuring 48 inches in length and 2 5/16 inches in width. This product is designed to seal the gap under a…
SKU 3G-OTH-515140
Also listed as: 420NHMDKB4 · 420NHMDKB 4
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
Need installation or engineering help?
Ask a question
Product Description
The NATIONAL GUARD Automatic Door Bottom is a single-fin insert model (MPN 420NHMDKB-4) made of aluminum, measuring 48 inches in length and 2 5/16 inches in width. This product is designed to seal the gap under a door, helping to block drafts, light, and sound.
Frequently Asked Questions
What is the NATIONAL GUARD Automatic Door Bottom used for?
The NATIONAL GUARD Automatic Door Bottom seals the gap under a door to block drafts, light, and sound. It is commonly installed on commercial or industrial doors in offices, hospitals, and manufacturing facilities to improve energy efficiency and acoustic privacy.
What are the specifications of the NATIONAL GUARD 420NHMDKB-4?
This NATIONAL GUARD Automatic Door Bottom is a single-fin insert model (MPN 420NHMDKB-4) 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 long-term use.
Where to buy the NATIONAL GUARD Automatic Door Bottom worldwide?
3G Electric supplies the NATIONAL GUARD Automatic Door Bottom (420NHMDKB-4) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this item.
How to install a NATIONAL GUARD Automatic Door Bottom?
Install the NATIONAL GUARD Automatic Door Bottom by cutting it to the exact door width, then attaching it to the bottom edge using screws provided. Ensure the fin aligns with the door stop to create a consistent seal. Follow the manufacturer's template for precise placement.
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.
