ducting
broan 647 wall cap
wall cap fits duct size 7 in construction material aluminum for use with vent terminations includes built in back draft damper and bird screen shields cap br b features b ul li for use with vent terminations li li includes built in backdraft damper 9 x 9 flange and bird screen shields cap li li item wall cap li li material aluminum li li construction material aluminum li li flange size in . 9 x 9 li li fits duct size in . 7 li ul
broan