The RainBuster 415 9-inch Self-Adhered Flashing Membrane is a durable and high-quality product designed for windows and seals. This paper-based membrane features a 25 MIL thickness and comes in 4 rolls, providing a total of 75 feet of adhesive material. Specifically designed for use with the Rain-Buster 430 Sealer, this flashing membrane offers a reliable solution for waterproofing and sealing window sills and other building materials. Its self-adhered design makes installation quick and easy, ensuring a secure and effective seal against water and moisture.