Pemko 303APK Standard Perimeter Gasketing Has a 1/4" Width, and 1-1/8" Height, with a PemkoPrene Insert, in Mill Finish Aluminum. The 303APK Pemko Perimeter gasketing, unless otherwise specified, is designed for openings with 1/16" gaps; however, each weatherstrip can seal gaps up to the depth of its seal

Features:

• Category J gaskets for use with listed steel frames and/or classified steel-covered composite, hollow metal doors rated up to and including 3 hours; wood and plastic covered composite doors rated up to and including 1-1/2 hours; and wood core doors rated for 20 minutes
• A rigid jamb weatherstrip is shown mounted on openings with 1/16" gaps; however, each weatherstrip can seal gaps up to the depth of its seal
• Stainless steel fasteners are standard. Other fasteners are available
• Punched on 6" center with slotted holes for adjustment