NATIONAL GUARD Automatic Door Bottom: Single Fin Insert, Aluminum, 36 in Lg, 2 5/16 in Wd
The NATIONAL GUARD Automatic Door Bottom (Single Fin Insert, MPN 420NHMA-3) is an aluminum door bottom measuring 36 inches in length and 2 5/16 inches in width, constructed from aluminum. As a global industrial…
SKU 3G-OTH-515153
Also listed as: 420NHMA3 · 420NHMA 3
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
Need installation or engineering help?
Ask a question
Product Description
The NATIONAL GUARD Automatic Door Bottom (Single Fin Insert, MPN 420NHMA-3) is an aluminum door bottom measuring 36 inches in length and 2 5/16 inches in width, constructed from aluminum. As a global industrial solutions provider, 3G Electric interprets customer demand and delivers genuine industrial equipment across 14 departments—including electrical, power transmission, and material handling—with specialist depth in combustion, pumps, and controls, ensuring you get the right answer for your facility needs.
Frequently Asked Questions
What is the NATIONAL GUARD Automatic Door Bottom 420NHMA-3 used for?
The NATIONAL GUARD Automatic Door Bottom (420NHMA-3) 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 indoor comfort. 3G Electric supplies this genuine aluminum door bottom as part of its global industrial solutions across 14 departments.
What are the specifications of the NATIONAL GUARD 420NHMA-3?
The NATIONAL GUARD Automatic Door Bottom (MPN 420NHMA-3) is a single-fin insert model made of aluminum. It measures 36 inches in length and 2 5/16 inches in width. This durable aluminum construction resists corrosion and wear, making it suitable for high-traffic doorways in industrial environments.
Where to buy the NATIONAL GUARD 420NHMA-3 worldwide?
3G Electric supplies the NATIONAL GUARD Automatic Door Bottom 420NHMA-3 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this genuine aluminum door bottom.
How to install the NATIONAL GUARD Automatic Door Bottom?
Install the NATIONAL GUARD 420NHMA-3 by cutting it to the exact door width, then attaching it to the bottom edge using screws or adhesive. Ensure the fin contacts the floor evenly when the door closes. For best results, follow the manufacturer's generic installation guidelines for automatic door bottoms.
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.
