11" Square Ceiling Support Box for 6" Inner Diameter Chimney Pipe

The 11" Square Ceiling Support Box provides safe passage of double wall chimney pipe through your floor or ceiling and supports the weight of the chimney in through the ceiling installations. The Ceiling Support Box can support a maximum of 50-ft of chimney pipe and includes trim to provide a finished look inside the room.  The support box and trim is painted black to match the black single wall stove pipe. Attached to the bottom of the ceiling support box is a twist lock connection for the Stove Pipe Adapter to connect (sold separately).  The support box and trim is painted black. Construction Material The adapter section of our Ceiling Support Box's are made of 304 stainless steel while the box itself is made of galvanized steel (as it is not exposed to any corrosive elements).   304 stainless steel/galvanized steel Certification Certified and listed to the UL 103HT standard and designed for appliances that are listed for use with a 2100 Degree Fahrenheit High Temperature chimney s