Upgrade your QuietCool whole house fan system with a QuietCool Vertical Adapter, specifically designed to provide flexible installation options for homes without attic space above the living area. Perfect for residences with adjacent attic spaces, these adapters allow you to mount your QuietCool damper box on a vertical wall instead of the ceiling, offering enhanced versatility and ease of installation.The QuietCool Vertical Adapters are an essential accessory for homeowners looking to maximize the potential of their QuietCool whole house fan system. By enabling vertical installation, these adapters offer a practical solution for unique home configurations, ensuring optimal airflow and energy efficiency without compromising on performance.The VA-1430 fits all QuietCool 4700 & 5400 or 4.8 & 5.5 models. Color: Silver. Material: Galvanized Steel.