Frost King Ds7b/25 Door Seal, 1 In. X 7 Ft., Thermoset Plastic

The Frost King DS7B/25 door seal is a precision-engineered weatherstripping strip designed for kerfed millwork doors. This brown gasket slides directly into the standard 1/8" × 11/32" kerf found on many interior and exterior doors, creating an effective barrier against drafts, dust, noise, and moisture. A properly sealed door reduces heat loss, improves energy efficiency, and helps lower heating and cooling costs year-round.

Whether you're weatherproofing a single door or sealing multiple openings, this 7-foot continuous length provides ample material for most installations. The thermoset plastic construction resists warping, cracking, and UV degradation, ensuring reliable performance in demanding environments. Brown coloring matches typical wood door tones for a clean, unobtrusive appearance that blends seamlessly with any interior or exterior setting.

Features and Benefits

• Precise 1-Inch Width: Fits perfectly into the 1/8" × 11/32" kerf of millwork doors, eliminating gaps and ensuring a tight seal for optimal thermal and acoustic performance.
• Fills Gaps Up to 11/16 Inches: Designed to fill gaps up to 11/16 inches wide for improved energy efficiency and weather protection.
• Durable Thermoset Plastic: Resists warping, cracking, and UV degradation for long-lasting durability in both interior and exterior applications.
• 7-Foot Continuous Length: Provides sufficient material for multiple doors or large openings without requiring frequent replacements.
• Fastener-Free Installation: No special tools or fasteners needed; simply press the seal into the kerf for a secure, professional finish that any homeowner can accomplish.
• Energy Efficient: Enhances thermal insulation to help reduce heating and cooling costs while supporting a greener building footprint.

Specifications

• Brand: Frost King
• Model: DS7B/25
• Width: 1 inch
• Length: 7 feet
• Color: Brown
• Material: Thermoset plastic
• Kerf Size: 1/8" × 11/32"
• Maximum Gap Fill: 11/16 inches
• Installation: Kerf installation, no fasteners required