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Hager 872S Mill Aluminum Astragal with High-Performance Neoprene Seal
The Hager 872S is a professional-grade meeting stile astragal designed to provide an elite weather and smoke seal for pairs of doors. Featuring a durable mill finish aluminum housing and a high-performance neoprene flange, this surface-mounted seal effectively closes the gap between double doors to prevent air infiltration, light leaks, and sound transfer. Whether used in exterior storefronts or interior fire-rated corridors, the 872S ensures a high-integrity barrier for your entryway.
Engineered for Extreme Environments and Fire Safety
The standout feature of the Hager 872S is its premium black neoprene insert. Unlike standard vinyl, neoprene is engineered to remain exceptionally flexible in temperatures as low as -50°F, ensuring a consistent seal in the harshest winter conditions. This astragal is UL Classified as a Category J gasket, making it a code-compliant solution for fire-rated hollow metal doors (up to 3 hours) and wood core fire doors (up to 20 minutes), providing essential life safety protection against smoke and flame spread.
Precision Installation and Adjustment
Designed for ease of installation and long-term performance, the 872S housing features slotted mounting holes. This allows for precise lateral adjustment to compensate for door sagging or uneven gaps between the meeting stiles. Each piece is furnished with high-quality zinc-plated #6 x 5/8" pan head sheet metal screws, ensuring a secure and stable mount on both wood and metal door types.
Technical Specifications
| Feature | Specification |
| Model Number | Hager 872S |
| Housing Material | Extruded Mill Finish Aluminum |
| Insert Material | High-Flexibility Neoprene (Black) |
| Flange Width | 5/8" (16 mm) |
| Temperature Rating | Flexible to -50°F (-49°C) |
| Fire Rating | UL Classified (Category J) |
| Fire Resistance | Up to 3 Hours (Hollow Metal) / 20-90 Mins (Wood) |
| Adjustment Type | Slotted Holes for Precision Alignment |
| Fasteners | Zinc Plated #6 x 5/8" Pan Head Sheet Metal Screws |
Application and Ordering Notes
- Ordering Information: Prices are listed per each piece. For a standard double-door set (one for each door leaf), please order a quantity of 2.
- Versatile Compatibility: Ideal for use on steel-covered composite doors, hollow metal frames, and plastic-covered fire doors.
- Weather & Sound Barrier: The dense neoprene flange is superior for blocking drafts and reducing noise transfer in commercial office or hospital settings.
| Length | 84 Inch or 96 Inch |
| Brand | Hager |
| Weatherstripping Type | Astragal |
| Fire Rated | Fire Rated |
| Smoke Rated | Smoke Rated |
| Insert Material | Neoprene |
| Housing Finish | Aluminum |
| Mounting Type | Surface Mounted, Screw Applied - Exp Screw |
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