43820 Kerf Style Door Bottom, Beige Vinyl, 36 In.

The M-D 43820 Kerf Style Door Bottom is a weatherstripping solution designed to seal gaps at the base of interior and exterior doors. This product inserts directly into kerf slots cut into the bottom of a door, creating a weathertight seal that blocks drafts, moisture, dust, and insects from entering your home. It is ideal for upgrading entry doors, bedroom doors, bathroom doors, closet doors, and patio doors where energy efficiency and comfort are priorities.

By sealing gaps up to 1/2 inch high, this door bottom helps reduce heating and cooling costs, minimizes outside noise infiltration, and maintains a clean, comfortable indoor environment. The beige vinyl construction blends seamlessly with most door styles while providing reliable, long-lasting protection. Installation is straightforward—simply insert the door bottom into the existing kerf slots with no additional tools required.

Features and Benefits

• All-Season Protection: Blocks drafts, moisture, dust, and insects year-round, maintaining comfort and energy efficiency.
• Durable Vinyl Construction: Features vinyl bulbs and fins that resist cracking and deformation for extended durability.
• Noise Reduction: Helps minimize outside noise infiltration for a quieter indoor environment.
• Easy Installation: Inserts directly into kerf slots at the bottom of doors without requiring additional tools or fasteners.
• Gap Sealing: Effectively seals gaps up to 1/2 inch high, ensuring a weathertight fit.
• Versatile Compatibility: Replaces many 1-3/4 inch pre-hung style door bottoms.

Specifications

• Brand: M-D
• Model: 43820
• Length: 35-3/16 inches
• Width: 1-3/4 inches
• Height: 1/2 inch
• Color: Beige
• Material: Vinyl with bulbs and fins
• Maximum Gap Seal: Up to 1/2 inch high