This duct connector for downflow mobile home furnaces acts as a supply plenum duct box. It has a 12" x 14" inner dimension, a 18.75" x 18.75" outer dimension, and a trimmable height of 7.5".
This duct connector for downflow mobile home furnaces acts as a supply plenum duct box. It has a 12" x 14" inner dimension, a 18.75" x 18.75" outer dimension, and a trimmable height of 7.5".