This ingeniously crafted piece of engineering is here to revolutionize your heating experience Pulling liner from inside a Osburn insert is a lot easier than it would be otherwise when you use a Osburn Liner Hook Up System. The liner remains in place once you've pulled it through and once installation is complete due to the system's unique design. Some homeowners may never have need of this kind of accessory. If you run into a situation that does call for its use, though, it's almost impossible to complete an installation without it. Get the liner inside your insert in place and keep it there using this simple but effective fixation system. Features You can easily pull liner from inside the insert with this adapter. The adapter remains in place once the installation is completed. Works great for tight fit installations. Manufacture Downloads Click Here For Installation Manual Click Here For Full Osburn Catalog Legal Disclaimers & Warnings Product packaging, owners’ manuals, installation instructions, and/or operating instructions may include more information than what is shown on our website. The content on our site is intended to be used for reference purposes only. Please fully read all included manuals and documentation before installing or using this product. WARNING for California residents: this product may contain chemical(s) known to the state of California to cause birth defects, cancer, or other reproductive harm.