Remove both ducts to master and enlarge them with 8 inch flex and dampers, add damper to lower dressing room duct, one bag 8 inch flex 3 collars, one 8-7 reducer, one 7-6 reducer. The goal is to get more airflow to master. Two 8 inch dampers and one 6 inch damper needed. On arrival at job noticed that we need a 10 to 8 reducer called Rick brought out 10 to 8 reducer Got all work completed pictures taken of all work completed 8 inch replaced 6 inch supply for master bedroom and 8 inch replaced old return in master bedroom job is complete