26 gauge steel, Black electrically bonded epoxy finish, Back draft flapper, Removable 1/4 x 1/4 screen, Available with collar and flush | BUILDER'S BEST INC | |||
26 gauge steel, Black electrically bonded epoxy finish, Back draft flapper, Removable 1/4 x 1/4 screen, Available with collar and flush | BUILDER'S BEST INC | 722048126343 |