The Pemko 18061_NB Brush Seal Meeting Stile Split Astragal is a high-quality door sweep that effectively seals gaps between pairs of doors. Additionally, it reduces the passage of smoke, fumes, weather, and light. The brush is made of densely compressed nylon filaments, which are flexible and adapt to slightly uneven surfaces. This makes it ideal for hollow metal and wood doors.

The aluminum casing measures 3/4″ in height, and the brush adds 5/8″, giving a total height of 1-3/8″. Moreover, the 18061_NB can be custom cut to fit doors between 24″ and 185″ in length. For example, it works well on doors with vertical rod exit devices or push/pull setups.

Key Features

• Densely compressed nylon brush filaments encased in a high-quality aluminum retainer
• Designed for surface application to seal the gap between two doors
• Suitable for hollow metal and wood doors
• Brush remains flexible down to -40°F; melting point above 400°F
• Brush mesh gap: 1/32″ to 1/16″
• Includes Nylon Brush (“NB”) insert – Item P516062 (available in gray and black)
• Fasteners included: PHSMS #6 x 5/8″ screws

Benefits

• Reduces smoke, fumes, weather, and light infiltration
• Smooth gliding brushes adjust to slightly uneven floors
• UV stable, long-lasting, and cost-effective
• Naturally repels rodents and spiders
• Improves fire door performance when installed per NFPA 80 standards

Specifications

• Base Material: Aluminum
• Fasteners: PHSMS #6 x 5/8″
• Maximum Length: 185″
• Minimum Length: 24″
• Overall Height: 1 3/8″
• Brush Height: 5/8″
• Casing Height: 3/4″
• Width: 1/4″
• Weight: 0.13 lbs

Certifications

• GREENGUARD Gold Certified
• UL 4L10 Listed
• UL 1784 – Standard for Air Leakage Tests
• UL 10C – Positive Pressure Fire Tests
• Environmental Product Declaration (EPD)
• ANSI/BHMA A156.22 – Door Gasketing and Edge Seal Systems

Usage Notes

• Supplied per piece; 2 required for a door pair
• Ideal for doors with vertical rod exit devices or push/pull hardware
• For fire door pairs, installation must maintain NFPA 80 requirements

Why Choose Pemko 18061_NB?

The 18061_NB Split Astragal is durable, flexible, and easy to install. Furthermore, it seals gaps for smoke, light, and weather, making it perfect for commercial and institutional doors. Its nylon brush ensures smooth operation and long-lasting performance, while being cost-effective.