Rolling Steel Doors
Diagnostics has the doors you need to complete your most demanding commercial projects. With multiple steel gauge, insulation, and glazing options, our sectional door line has the product flexibility to meet your needs.
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| Model 4000
- Available in 24, 22, 20, or 18 Gauge Slats
- Powder Coated Guides, Head Plates and Bottom Bar Standard
- 3-Year Limited Warranty
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- Available in 24, 22, 20, or 18 Gauge Slats
- Foamed-in-Place Polyurethane Insulation
- Guide Weatherseal
- 3-Year Limited Warranty
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- Available in 24, 22, 20, or 18 Gauge Slats
- Fusible Link Standard
- Up to 4 Hour UL Label
- 3-Year Limited warranty
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- Extruded 5/16” diameter aluminum rods
- Durable 1/8” thick links
- Extruded Aluminum Guides
- Concealed Cylinder Lock
- 3-Year Limited Warranty
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- Extruded aluminum, prefinished steel or #4 brushed stainless steel slats
- Extruded aluminum guides
- Steel and Aluminum bottom bar options
- 3-Year Limited Warranty
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- Prefinished steel or #4 brushed stainless steel slats
- Up to a 3 Hour Fire Rating
- Box Shaped Steel Guides
- 20,000 Cycle springs
- 3-Year Limited warranty
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