![3 way stainless steel air regulation tube damper for ventilation Air Duct Valve OD76mm - Walmart.com 3 way stainless steel air regulation tube damper for ventilation Air Duct Valve OD76mm - Walmart.com](https://i5.walmartimages.com/asr/ba98560f-c81c-4e2f-9829-f958491b76fc.dbb77572975b7eb79daac2ed9273cbbe.jpeg)
3 way stainless steel air regulation tube damper for ventilation Air Duct Valve OD76mm - Walmart.com
![7-in HVAC Duct Manual Volume Damper with Sleeve - Galvanized Sheet Metal Round Volume Damper Airflow Ducting Branch, Adjustment Handle HVAC Air Balancing System - Easy to Install - Ducting Components - Amazon.com 7-in HVAC Duct Manual Volume Damper with Sleeve - Galvanized Sheet Metal Round Volume Damper Airflow Ducting Branch, Adjustment Handle HVAC Air Balancing System - Easy to Install - Ducting Components - Amazon.com](https://m.media-amazon.com/images/I/41phIRvBshL.jpg)
7-in HVAC Duct Manual Volume Damper with Sleeve - Galvanized Sheet Metal Round Volume Damper Airflow Ducting Branch, Adjustment Handle HVAC Air Balancing System - Easy to Install - Ducting Components - Amazon.com
![8-in HVAC Duct Manual Volume Damper with Sleeve - Galvanized Sheet Metal Round Volume Damper Airflow Ducting Branch, Adjustment Handle HVAC Air Balancing System - Easy to Install - Ducting Components - Amazon.com 8-in HVAC Duct Manual Volume Damper with Sleeve - Galvanized Sheet Metal Round Volume Damper Airflow Ducting Branch, Adjustment Handle HVAC Air Balancing System - Easy to Install - Ducting Components - Amazon.com](https://m.media-amazon.com/images/I/61Pea8lAhpL.jpg)
8-in HVAC Duct Manual Volume Damper with Sleeve - Galvanized Sheet Metal Round Volume Damper Airflow Ducting Branch, Adjustment Handle HVAC Air Balancing System - Easy to Install - Ducting Components - Amazon.com
![Duct Damper For Prevent Gas From Flowing Back Air Duct Check Valve Stainless Steel Check Valves Galvanized - Valves - AliExpress Duct Damper For Prevent Gas From Flowing Back Air Duct Check Valve Stainless Steel Check Valves Galvanized - Valves - AliExpress](https://ae01.alicdn.com/kf/H78794d32ecee4ee3900f8583f6c23220Y/duct-damper-for-Prevent-gas-from-flowing-back-air-duct-check-valve-stainless-steel-check-valves.jpg)
Duct Damper For Prevent Gas From Flowing Back Air Duct Check Valve Stainless Steel Check Valves Galvanized - Valves - AliExpress
![3 way 90°stainless steel air regulation damper for ventilation tube Air Duct Valve OD51mm Ytype - Walmart.com 3 way 90°stainless steel air regulation damper for ventilation tube Air Duct Valve OD51mm Ytype - Walmart.com](https://i5.walmartimages.com/asr/65635eed-9aa2-4c89-8302-f718a65f5c15.a41b799bcc8d0d65359099f7c31247ee.jpeg)
3 way 90°stainless steel air regulation damper for ventilation tube Air Duct Valve OD51mm Ytype - Walmart.com
![Manual Control Duct Valve, China HVAC Air Duct Damper - China Air Duct Damper, Manual Duct Damper | Made-in-China.com Manual Control Duct Valve, China HVAC Air Duct Damper - China Air Duct Damper, Manual Duct Damper | Made-in-China.com](https://image.made-in-china.com/2f0j00lpgfnmOJwykD/Manual-Control-Duct-Valve-China-HVAC-Air-Duct-Damper.jpg)
Manual Control Duct Valve, China HVAC Air Duct Damper - China Air Duct Damper, Manual Duct Damper | Made-in-China.com
![6-in HVAC Duct Manual Volume Damper with Sleeve - Galvanized Sheet Metal Round Volume Damper Airflow Ducting Branch, Adjustment Handle HVAC Air Balancing System - Easy to Install - Ducting Components - Amazon.com 6-in HVAC Duct Manual Volume Damper with Sleeve - Galvanized Sheet Metal Round Volume Damper Airflow Ducting Branch, Adjustment Handle HVAC Air Balancing System - Easy to Install - Ducting Components - Amazon.com](https://m.media-amazon.com/images/I/81PnTTxglDL.jpg)
6-in HVAC Duct Manual Volume Damper with Sleeve - Galvanized Sheet Metal Round Volume Damper Airflow Ducting Branch, Adjustment Handle HVAC Air Balancing System - Easy to Install - Ducting Components - Amazon.com
![200mm Stainless Steel Air Damper Valve Electric Air Duct Motorized Check Valve For 8 Inch Ventilation Pipe Valve 220v 24v 12v - Air Conditioner Parts - AliExpress 200mm Stainless Steel Air Damper Valve Electric Air Duct Motorized Check Valve For 8 Inch Ventilation Pipe Valve 220v 24v 12v - Air Conditioner Parts - AliExpress](https://ae01.alicdn.com/kf/HTB1OcWNXLLsK1Rjy0Fbq6xSEXXaw/200mm-stainless-steel-air-damper-valve-electric-air-duct-motorized-check-valve-for-8-inch-ventilation.jpg)