The FAMCO FCA Flue Cap – Aluminum is designed to cap off or terminate the end of a pipe. The Flue Cap has no crimp and is installed over the outside of the pipe. Quality constructed in .020 gauge Aluminum. The FAMCO FCA Flue Cap – Aluminum is available in many sizes for optimum fitting. Sizes available are 3 inch, 4 inch, 5 inch, 6 inch, 7 inch, 8 inch, 9 inch, 10 inch, 12 inch, 14 inch, and 16 inch. The FAMCO FCA Flue Cap – Aluminum is manufactured by FAMCO in the United States and comes with a 1-year warranty against product defects and workmanship. If you have any questions about this product or variations available, please refer to the FAQs above or feel free to contact us by phone or email.