TinnerFlow™1st YearSystems & Controls
Diffuser = supply outlet with air pattern control. Register = supply or return with a damper. Grille = return or transfer opening, no damper. Use the corr…
Diffuser = supply outlet with air pattern control. Register = supply or return with a damper. Grille = return or transfer opening, no damper. Use the correct term every time — it matters on RFIs and submittals.
Do not hide, force, cover, or “make it work” if this affects safety, access, airflow, rated assemblies, supports, equipment, or inspection. Stop and verify the approved correction.