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speedi boot sc 07 duct start take off collar7 in duct dia
duct start take off collar blade type round frame material plastic blade material plastic damper dia . 8 3 8 in . duct dia . 7 in . duct width 7 in . duct height 7 in . br b features b ul li construction plastic li li duct opening 7 li li duct size in . 7 li li height in . 3 li li item duct start take off collar li li overall dia . in . 8 3 8 li li type round li li blade type round li li frame material plastic li li blade material plastic li li duct width 7 li li duct dia . 7 li li damper dia . 8 3 8 li li duct height 7 li ul