ducting
broan 423 ducttransition
transition duct duct size 4 1 2 x 18 1 2 to 10 in round height 8 in construction material 30 gauge galvanized steel for connecting a rectangular duct to a round duct for use with 4tr56 4tr57 4tr58 4tr594tr60 4tr61 4tr62 and 4tr63 br b features b ul li duct size in . 4 1 2 x 18 1 2 to 10 round li li for use with 4tr56 4tr57 4tr58 4tr594tr60 4tr61 4tr62 and 4tr63 li li height in . 8 li li item transition duct li li remarks for connecting a rectangular duct to a round duct li li construction material 30 gauge galvanized steel li ul
broan