![Roof Curb Adapter, Adapts 19" Fan Curb Cap/Base to 22" Roof Curb, Product # ADAPTER-19-22 | Greenheck Roof Curb Adapter, Adapts 19" Fan Curb Cap/Base to 22" Roof Curb, Product # ADAPTER-19-22 | Greenheck](https://content.greenheck.com/public/DAMProd/Website_Full_Desktop/10010/Adapter_1.png)
Roof Curb Adapter, Adapts 19" Fan Curb Cap/Base to 22" Roof Curb, Product # ADAPTER-19-22 | Greenheck
![Active Ventilation Box is 19 in. Wide x 19 in. Long x 6 in. High Aluminum Roof Curb RC-16-H6 - The Home Depot Active Ventilation Box is 19 in. Wide x 19 in. Long x 6 in. High Aluminum Roof Curb RC-16-H6 - The Home Depot](https://images.thdstatic.com/productImages/ba863a32-6f68-4d13-b470-e66612476426/svn/active-ventilation-rooftop-venting-rc-16-h6-64_600.jpg)
Active Ventilation Box is 19 in. Wide x 19 in. Long x 6 in. High Aluminum Roof Curb RC-16-H6 - The Home Depot
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Active Ventilation Box is 8 in. Wide x 8 in. Long x 6 in. High Aluminum Roof Curb RC-5-H6 - The Home Depot
![Roof Curb Adapter, Adapts 19" Fan Curb Cap/Base to 26" Roof Curb, Product # ADAPTER-19-26 - Dorse & Company - Your Trusted HVAC Equipment Provider Roof Curb Adapter, Adapts 19" Fan Curb Cap/Base to 26" Roof Curb, Product # ADAPTER-19-26 - Dorse & Company - Your Trusted HVAC Equipment Provider](https://shop.dorse.com/assets/dam/public/DAMProd/Website_Full_Desktop/10010/Adapter_2.png)
Roof Curb Adapter, Adapts 19" Fan Curb Cap/Base to 26" Roof Curb, Product # ADAPTER-19-26 - Dorse & Company - Your Trusted HVAC Equipment Provider
![Active Ventilation Box is 13 in. Wide x 13 in. Long x 6 in. High Aluminum Roof Curb RC-10-H6 - The Home Depot Active Ventilation Box is 13 in. Wide x 13 in. Long x 6 in. High Aluminum Roof Curb RC-10-H6 - The Home Depot](https://images.thdstatic.com/productImages/e34c3016-73fb-40ff-a44b-0adaee563be8/svn/active-ventilation-rooftop-venting-rc-10-h6-64_600.jpg)