Selkirk 208424 Support Box, 8", #8T-SB HELLOFALL10 An Insulated Tee Cap is

An Insulated Tee Cap is included and can be removed from the bottom opening for inspection and cleanout

Rotate tube to adjust closing speed

The Strong-Drive SD Connector screw is specifically designed to replace nails in certain Simpson Strong-Tie connectors and is the only screw approved for that application

Rusty Metal Primer

Selkirk 208424 Support Box, 8", #8T-SB HELLOFALL10 An Insulated Tee Cap isThe Support Box is intended for use when installing a Sure Temp chimney in an a frame, in a mobile home, or in a ceiling under a narrow section of roof. It provides a finished installation at the ceiling level and will support up to 20 feet of 8" diameter chimney. The part also can be used to provide shielding from insulation when installed in an unoccupied attic space. The support box assembly is comprised of a black box designed for installation