MV360S Round Diffuser Grille for 4/5/6" Duct$$Tools & Hardware Other

Will accept 4, 5, and 6 inch duct sizes using tear-away bands so there is no cutting required. Mounting clips rotate into position securing the unit to the ceiling material quickly and easily. An adjustable fixed-position damper allows you to regulate the mount of air moving through the grille. Includes 1 tie strap