NATIONAL GUARD Door Threshold: Heavy Duty, Aluminum
The NATIONAL GUARD 425HD-48 is a heavy-duty aluminum door threshold, 4 ft long, featuring a fluted transition type. This product is supplied by 3G Electric, a global industrial solutions provider that interprets…
SKU 3G-OTH-505747
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Product Description
The NATIONAL GUARD 425HD-48 is a heavy-duty aluminum door threshold, 4 ft long, featuring a fluted transition type. This product is supplied by 3G Electric, a global industrial solutions provider that interprets customer demand and delivers genuine equipment across 14 industrial departments, with specialist depth in combustion, pumps and controls.
Frequently Asked Questions
What is the NATIONAL GUARD 425HD-48 door threshold used for?
The NATIONAL GUARD 425HD-48 is a heavy-duty aluminum door threshold, 4 ft long, designed to seal the gap under commercial or industrial doors. Its fluted transition type provides a durable, slip-resistant surface for high-traffic entries, helping to block drafts, dust, and pests.
What are the specifications of the NATIONAL GUARD 425HD-48?
The NATIONAL GUARD 425HD-48 is a heavy-duty aluminum door threshold, 4 ft long, with a fluted transition type. The manufacturer part number is 425HD-48. It is supplied by 3G Electric, a global industrial solutions provider across 14 departments including electrical, power transmission, and material handling.
Where to buy the NATIONAL GUARD 425HD-48 worldwide?
3G Electric supplies the NATIONAL GUARD 425HD-48 heavy-duty aluminum door threshold worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this genuine NATIONAL GUARD product to your facility, regardless of location.
How to install the NATIONAL GUARD 425HD-48 door threshold?
Install the NATIONAL GUARD 425HD-48 by measuring the door opening, cutting the 4 ft aluminum threshold to fit if needed, and securing it with appropriate fasteners through the pre-drilled holes. Ensure the fluted surface faces upward for traction. Consult a professional for concrete or uneven subfloors.
NATIONAL GUARD Products
3G Electric supplies NATIONAL GUARD heavy duty thresholds. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









