

The 1120DBS T-Bar Lay-in Diffuser is designed to efficiently distribute air in duct systems with a 1" Ductboard Back. Measuring 24" x 24", this diffuser features a perforated return air grille. It can be installed with or without 1" thick fiberglass duct board, ensuring flexibility. Installation is a breeze and can be done in under 20 minutes with common tools.