Oatey No-Caulk 3 In. Thermoplastic Base Pipe Flashing is a durable and reliable solution designed to provide a leak- seal around vent stacks. This one-piece flashing features a patented positive double seal that prevents leaks while allowing for pipe expansion and movement. Its black thermoplastic construction blends seamlessly with modern roofing materials and excellent weather resistance. Suitable for roof angles from flat to 45 degrees, it fits various pipe types including copper, cast iron, plastic, aluminum, and galvanized. Installation is simple as the flashing slips over the vent stack and automatically adjusts to the pipe size and roof angle. Resistant to rust, corrosion, and roof discoloration, this flashing ensures long-lasting protection for your roof’s vent pipes. Model Number: 11890