NATIONAL GUARD Door Threshold: Saddle, Aluminum
The NATIONAL GUARD Door Threshold is a 3 ft long aluminum saddle threshold (MPN 426SIA-3) featuring a fluted transition type. This product is a saddle threshold designed for door openings.
SKU 3G-OTH-505165
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Product Description
The NATIONAL GUARD Door Threshold is a 3 ft long aluminum saddle threshold (MPN 426SIA-3) featuring a fluted transition type. This product is a saddle threshold designed for door openings.
Frequently Asked Questions
What is a NATIONAL GUARD 426SIA-3 door threshold used for?
The NATIONAL GUARD 426SIA-3 is a 3 ft aluminum saddle threshold used to seal the gap under a door opening. Its fluted transition type provides a finished, slip-resistant surface for pedestrian traffic in commercial or industrial doorways.
What are the specifications of the NATIONAL GUARD 426SIA-3 threshold?
The NATIONAL GUARD 426SIA-3 is a 3 ft long aluminum saddle threshold with a fluted transition type. The manufacturer part number is 426SIA-3. It is designed for door openings and is made of durable aluminum.
Where to buy a NATIONAL GUARD 426SIA-3 threshold worldwide?
3G Electric supplies the NATIONAL GUARD 426SIA-3 aluminum saddle threshold to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this fluted transition threshold.
How to install a NATIONAL GUARD saddle threshold?
Install the NATIONAL GUARD 426SIA-3 by cutting it to exact door width, then securing it to the subfloor with appropriate fasteners. Ensure the fluted surface faces up for traction. Seal edges with silicone for weatherproofing. Always follow local building codes.
NATIONAL GUARD Products
3G Electric supplies NATIONAL GUARD saddle thresholds. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









