Pemko 18061CNB36 36" 3' 180 Degree Aluminum Retainer Weatherstrip with 5/8" Nylon Brush Clear Aluminum Finish

The 18061CNB36 aluminum retainer weatherstrip installs on door frames and thresholds to seal gaps that let air, dust, and moisture infiltrate buildings. This 36-inch brush seal weatherstrip features a dense 5/8" nylon brush that flexes to follow surface irregularities around doors. Pemko designed this retainer system to improve energy efficiency by stopping drafts while maintaining smooth door operation.

The clear anodized aluminum casing measures 3/4" high with the nylon brush extending another 5/8" for 1-3/8" total height. The flexible brush compresses when doors close but springs back to maintain contact with door bottoms and sides. This weatherstrip works on both interior and exterior applications where air sealing is required.

Material	Anodized Aluminum, Nylon Brush
Length	36 inches
Casing Height	3/4"
Brush Height	5/8"
Total Height	1-3/8"
Finish	Clear Anodized
Warranty	5 Years Limited

This weatherstrip meets UL 10C fire door testing requirements and UL 1784 air leakage standards. It also complies with ANSI/BHMA A156.22 door gasketing specifications and holds GREENGUARD Gold certification for indoor air quality.

Fire-rated door assemblies require UL 10C testing to verify positive pressure performance. For broader building code context on egress requirements, see NFPA 101 compliance guidelines.