| Brand | Unbranded |
| Item Thickness | 22mm |
| Model | M-327 |
Edge Silicone Sealing: Our damper sleeve features a rubber seal ring inside, providing good air tightness and it can prevent the air duct valve from leaking when it is closed. Other Features: The red airflow arrow sticker serves as a crucial visual indicator, ensuring proper installation and functionality within an HVAC system.