Duct System Drawings 1. Installation for PVC Flexible Vibration-Isolating Connector 2. Installation for Rectangular Damper 3. Installation for Ductwork Reinforced 4. Installation for Fire Damper 5. Installation for Vane Runner 6. Installation for Jet Diffuser Series 7. Installation for Square Diffuser 8. Installation for Round Ceiling Diffuser 9. Installation for Round Damper 10. Installation for Drum Louver Type Jet Diffuser 11. Installation for Plenum and Diffuser 12. Hanging Ductwork 13. Airflow Direction for Removable Diffuser 14. Blades Angel for Linear Diffuser & Installation 15. Floor Diffuser Features 16. Hanging & Connecting Flexible Duct 17. Ductwork Installation   4. Installation for Fire Damper