The Pemko 379_R Adjustable Jamb Gasket w/ Sponge Neoprene provides a reliable seal for commercial and institutional doors. This Pemko 379_R Adjustable Jamb Gasket effectively blocks air, smoke, and light while sealing gaps up to 1/4″. In addition, it allows adjustment of up to 3/16″ to accommodate uneven or inconsistent door gaps, ensuring a tight, energy-efficient seal.

The gasket features a sponge neoprene insert that is flexible in both high and low temperatures. Moreover, it resists deterioration from oils and other substances, and its slightly compressible material ensures consistent contact along the door frame. Furthermore, installation is easy with screw-applied mounting on the side of the frame.

Key Features

• Silicone insert for high-performance sealing
• Seals gaps up to the depth of the seal
• Slotted holes punched on 6″ centers for adjustment
• Available with self-adhesive tape and TEK screws
• Screw-applied installation on the side of frame

Specifications

• Base Material: Aluminum
• Fasteners: Self-Adhesive or PHSMS #6 x 5/8″
• Height: 1/4″
• Overall Height: 1/4″
• Profile Height: 813/1000″
• Minimum Length: 2′
• Maximum Length: 185″
• Mounting Location: Side of Frame
• Mounting Type: Screw Applied
• Weight: 0.07 lbs

Certifications & Compliance

• GREENGUARD Gold Certified
• UL 1784 – Air Leakage Tests of Door Assemblies
• UL 10C – Positive Pressure Fire Tests of Door Assemblies
• ASTM E-283-04 (2012)
• ANSI/BHMA A156.22 – Door Gasketing and Edge Seal Systems

Overall, the Pemko 297_S Standard Perimeter Gasket with Silicone Insert delivers dependable sealing, easy installation, and long-term durability for commercial and institutional door applications.