Roof Jacks & Extensions
Coleman/Revolv Interior Extension: 11 inches (FC-6111)
** NLA ** ITEM IS NO LONGER AVAILABLE. PLEASE LOOK AT OUR 16" INTERIOR EXTENSIONS.
This interior roof jack extension adds 11" to the roof jack’s connection to the furnace. The extension is not adjustable and should not be used or extend inside attic spaces; use only between the furnace and ceiling line.