For the ECO-65 pellet stove. The kit includes a metal plate to cover 65% of the front louvre, a 4 x 10 in. boot for the duct, an adapter from 4 x 10 in. to two 5 in. round outlets, two 5 in. rings and the hardware. Transforms your eco-65 pellet stove into a small warm air furnace. Against manufacturer's defects.