Selkirk 206424 Support Box, 6", #6T-SB GiftsForSeason In-line design minimizes pressure loss

In-line design minimizes pressure loss of dirt and debris during installation and system start-up

Flexible Vinyl Wall Base protects base of walls from damage and cleaning chemicals

1752 insulator and self-locking nut

coverage will depend on porosity of surface

Selkirk 206424 Support Box, 6", #6T-SB GiftsForSeason In-line design minimizes pressure lossThe 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 6" 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