M-D 1-1/4" x 3/4" x 36" Gray Vinyl Insert for Adjustable Aluminum Threshold is designed to replace old and worn-out inserts on your existing threshold with ease. Made from durable vinyl, this insert provides an effective seal that helps protect your home from drafts, moisture, dust, and insects. For a smooth installation, it is to use a soap and water solution, making the process simple and efficient. This product ensures your threshold remains functional and weather-resistant, extending the life of your door system. Model Number: 13524