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Hager 778S Door Bottom with Rain Drip and Vinyl Seal
The Hager 778S is a heavy-duty wrap-around door bottom engineered to provide a comprehensive seal for the underside of 1-3/4" thick doors. Featuring an integrated rain drip shield, this unit deflects water away from the threshold, preventing moisture from wicking into the door core or entering the building. The mill finish aluminum housing provides structural protection to the bottom of the door while the multi-finned grey vinyl insert creates an airtight barrier against drafts, dust, and pests.
Extreme Weather and Fire Protection
Designed for the most demanding environments, the Hager 778S utilizes high-grade vinyl that maintains its flexibility in temperatures as low as -40°F. This ensures a consistent seal during harsh winters without cracking or becoming brittle. Furthermore, this door bottom is UL10C Classified for use on Category J doors, making it a code-compliant choice for fire-rated openings in hospitals, schools, and industrial facilities.
Precision Fit for 1-3/4" Doors
The "U-shaped" design of the 778S wraps around the bottom of the door, providing protection to both faces and the bottom edge. For optimal performance, a 5/8" clearance is required between the floor or threshold and the underside of the door. The housing features slotted screw holes, allowing for easy vertical adjustment to ensure a perfect, snug fit against flat surfaces.
Technical Specifications
| Feature | Specification |
| Model Number | Hager 778S |
| Door Thickness | 1-3/4" (44 mm) |
| Clearance Required | 5/8" (16 mm) |
| Material | Mill Finish Aluminum |
| Insert Type | Finned Grey Vinyl |
| Special Feature | Integrated Rain Drip Shield |
| Fire Rating | UL10C Classified (Category J) |
| Temperature Range | Flexible to -40° Fahrenheit |
| Fasteners | Zinc Plated #6 x 5/8" Pan Head Steel Screws |
Installation Highlights
- Wrap-Around Design: Provides superior protection and a cleaner look than standard surface-mounted sweeps.
- Easy Adjustment: Screws are applied from one side only, and slotted holes allow for fine-tuning the seal after the door is hung.
- Versatile Use: Ideal for both wood and hollow metal doors requiring a high-performance moisture and air barrier.
| Length | 36 Inch or 48 Inch |
| Brand | Hager |
| Insert Material | Vinyl |
| Material Length | 1/2" |
| Fire Rated | Fire Rated |
| Bottom Weatherseal Type | Door Bottom w/ Rain Drip |
| Housing Finish | Aluminum |
| Sweeps, Door Bottom or Rain Drip | Door Bottom |
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