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Fire dampers offer protection in the case of a fire by preventing the flames from spreading through your ventilation and air ducts. Damper must be kept clean and protected from dirt, dust and other foreign materials prior to and after installation. Caulking is not necessary, nor is it allowed, between the damper sleeve and the wall or floor opening. Item: Fire Damper with Sleeve Damper Item: Sleeved Fire Damper Damper Shape: Square Mounting Type: Dynamic, Vertical Nominal Duct Width: 12" Nominal Duct Height: 12" Damper Depth: 3-11/16" Material: 22 ga. Galvanized Steel Damper Height: 11-3/4" Damper Width: 11-3/4" Recommended Retaining Angle: 2TGH2 Fire Rated: 1-1/2 hr. Free Area: 0.643 sq. ft. Fusible Link: 165 Degrees F For Use With: Low Pressure HVAC Systems Standards: UL Standard 555, NFPA 80, 90A and 101, IBC, CSFM, NYC MEA Includes: Stainless Steel Closure Spring, UL Fusible Link
| ASIN | B01M0KJPBO |
| Best Sellers Rank | #1,932,461 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #5,099 in HVAC Ducting |
| Brand | Dayton |
| Color | Silver |
| Compatible Groove Diameter | 12 inches |
| Drive System | Square |
| Exterior Finish | Alloy Steel |
| Finish Types | Galvanized |
| Grade Rating | Standard |
| Head Type | Flat |
| Item Weight | 10 pounds |
| Manufacturer | CAI - DAYTON |
| Material Type | Alloy Steel, Stainless Steel |
| Metal Type | Alloy Steel |
| Number Of Items | 1 |
| Number of Packs | 1 |
| Outside Diameter | 12 inches |
| Part Number | 20CK20 |
| Screw Head Style | Square |
| Set Name | No Set |
| Size Name | 12 inches |
| UPC | 727079905035 |
| Unit Count | 1 Count |
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