?unique=2982e5d)
Hager 779S Wrap-Around Door Bottom with Finned Vinyl Seal
The Hager 779S is a professional-grade U-shaped door bottom designed to provide a comprehensive perimeter seal for 1-3/4" thick commercial and residential doors. By wrapping around the bottom edge of the door, this aluminum housing offers superior protection against air infiltration, smoke, and moisture compared to standard surface-mounted sweeps. The multi-finned vinyl insert creates a tight barrier that significantly improves energy efficiency and building comfort.
Engineering for Performance and Fire Safety
The Hager 779S is built for reliability in high-traffic and extreme environments. The high-grade vinyl gasketing is engineered to remain fully flexible in temperatures as low as -40°F, preventing the seal from becoming brittle or cracking in winter conditions. Additionally, this product is UL10C fire tested and classified for use with Category J doors, making it a vital component for maintaining the integrity of fire-rated openings in schools, hospitals, and office buildings.
Precision Adjustment and Versatile Lengths
Available in 3-foot (36") and 4-foot (48") lengths, the 779S can be easily trimmed for a custom fit. The aluminum housing features slotted screw holes, allowing the installer to fine-tune the seal height to compensate for uneven thresholds or floors. To achieve the best performance, a 5/8" clearance is recommended between the bottom of the door and the floor surface.
Technical Specifications
| Feature | Specification |
| Model Number | Hager 779S |
| Door Thickness | 1-3/4" (44 mm) |
| Available Lengths | 3 Feet (36") or 4 Feet (48") |
| Clearance Required | 5/8" (16 mm) between door and threshold |
| Housing Material | Mill Finish Aluminum |
| Insert Material | Finned Vinyl (Grey) |
| Fire Rating | UL10C Classified (Category J) |
| Temp Resilience | Flexible to -40° Fahrenheit |
| Fasteners | Zinc Plated #6 x 5/8" Pan Head Steel Screws |
Key Installation Benefits
- Double-Sided Protection: The wrap-around design protects the bottom edge of the door from physical damage and moisture.
- Single-Side Fastening: Screws are applied from one side only, simplifying the installation process.
- Acoustic and Smoke Barrier: Multi-finned vinyl provides an effective seal against noise and smoke transfer.
- Code Compliance: Meets stringent Underwriters Laboratory (UL) requirements for fire door gasketing materials.
| Length | 36 Inch or 48 Inch |
| Brand | Hager |
| Insert Material | Vinyl |
| Material Length | 1/2" |
| Housing Finish | Aluminum |
| Fire Rated | Fire Rated |
| Bottom Weatherseal Type | Door Bottom |
| Sweeps, Door Bottom or Rain Drip | Door Bottom |
Recently Viewed Items