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Dayton
Backdraft Damper, Vert/Horiz Mtg, 27 3/4Sq
Mfr # 3HHL7
Zoro # G2135865
product price: $93.79
/ea
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Key Features
- Type No Flange, Horizontal or Vertical Mount
- Damper Size (In.) 27-3/4 x 27-3/4
- Overall Size (In.) 27-3/4 x 27-3/4
- Construction Material G-90 Galvanized Steel Frame and Aluminum Blades
- Outside Flange (In.) 27-3/4 x 27-3/4
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Product Information
- Brand Dayton
- MFR # 3HHL7
- Zoro # G2135865
- UPC # 190735289549
- Country of Origin United States
- Category Backdraft Roof Dampers
Dimensions
| Damper Size (In.) | 27-3/4 x 27-3/4 |
| Overall Size (In.) | 27-3/4 x 27-3/4 |
| Overall Width | 27 3/4 in |
| Overall Length | 4 1/2 in |
| Overall Height | 27 3/4 in |
| Rough Opening Diameter | 28 in |
| Frame Depth | 2 in |
| Fits Fan Diameter | 28 in |
| For Nominal Duct Diameter | 28 in |
| Rough Opening Length | 28 in |
| Rough Opening Width | 28 in |
Description
27.8 In.H-W 4.5 In.L Alu Spring Bkdrft Dampr, Damper Application Backdraft, For Nominal Duct Diameter 28 in, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2000 fpm, Overall Height 27 3/4 in, Rough Opening Diameter 28 in, Rough Opening Shape Square, Fits Fan Diameter 28 in, For Duct Shape Square, Free Area 4.9 sq ft, Overall Width 27 3/4 in, Frame Material Thickness 20 ga, Overall Length 4 1/2 in, Frame Depth 2 in, Rough Opening Length 28 in, Maximum Pressure 1 in wc
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