3 - Duct opening 7x12 (Overall size 8.25x14.5 with 1/2" flange on the top and bottom, 1" flange on the sides) 1/8" thick Steel Royal Linear in White return no damper, with NO underside lip, and with two screw holes (one on each short end) for $115.00 each - 3 for $345.00
