This is a professionally designed return ductwork installation kit for the BM36MCD concealed duct (multi room) air handler. With the exception of the return plenum itself this kit includes all of the materials needed to successfully install the BM36MCD return ductwork. This kit has been designed to deliver an optimal performance level and help to simplify the installation. It uses three 12 inch return ducts to optimize air mixture in your space and simplify the return air installation. It is highly recommended that you select one of the matching supply duct installation kits as well and the supply and return air plenum KIT-BPK36. This kits is designed to be used with a ductboard plenum such as KIT-BPK36. This kit is not compatible with a sheet metal plenum. It includes:

x3 25 feet of 12 inch R8 metalized flex ducts
x3 12 inch ductboard takeoff collar with no dampers
x3 14.5 x 20.5 x 12 (round connection) Non insulated ceiling boxes
x3 14 x 20 x 1 ceiling filter grilles
x1 Foil Tape