NATIONAL GUARD Automatic Door Bottom: Dual Fin Insert, Aluminum, 48 in Lg, 1 1/2 in Wd
The NATIONAL GUARD Automatic Door Bottom with Dual Fin Insert (MPN 320N-48) is a 48-inch long, 1 1/2-inch wide aluminum door bottom designed to seal the gap beneath a door. 3G Electric sources this genuine NATIONAL…
SKU 3G-OTH-515163
Need installation or engineering help?
Ask a question
Product Description
The NATIONAL GUARD Automatic Door Bottom with Dual Fin Insert (MPN 320N-48) is a 48-inch long, 1 1/2-inch wide aluminum door bottom designed to seal the gap beneath a door. 3G Electric sources this genuine NATIONAL GUARD product as part of our broader industrial supply capability across 14 departments, with specialist expertise in combustion, pumps and controls.
Frequently Asked Questions
What is the NATIONAL GUARD Automatic Door Bottom 320N-48 used for?
The NATIONAL GUARD Automatic Door Bottom with Dual Fin Insert seals the gap beneath a door to block drafts, light, and sound. It is commonly used in commercial and industrial facilities for energy efficiency and privacy. 3G Electric supplies this genuine NATIONAL GUARD product as part of our broader industrial capability across 14 departments.
What are the specifications of the NATIONAL GUARD 320N-48 door bottom?
The NATIONAL GUARD 320N-48 is a 48-inch long, 1 1/2-inch wide automatic door bottom made of aluminum with a dual fin insert. It is designed for standard door applications. 3G Electric sources this genuine NATIONAL GUARD product alongside specialist expertise in combustion, pumps and controls.
Where to buy the NATIONAL GUARD 320N-48 door bottom worldwide?
3G Electric supplies the NATIONAL GUARD 320N-48 Automatic Door Bottom to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine NATIONAL GUARD products and support your procurement needs across 14 departments.
How to install the NATIONAL GUARD 320N-48 automatic door bottom?
Install the NATIONAL GUARD 320N-48 by cutting it to door width, then mounting it to the bottom of the door using screws. Ensure the dual fin insert contacts the floor evenly for proper sealing. 3G Electric supplies this genuine NATIONAL GUARD product and can advise on general installation best practices.
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.









