This 4" x 20' vinyl vent hose from Braxton Harris is designed for efficient ventilation in various applications. Made from high-quality vinyl, this hose is flexible and durable, ensuring long-lasting performance. Its 4" diameter allows for optimal airflow, making it suitable for use in HVAC systems, exhaust applications, and more. The 20' length provides ample reach for installation in different settings. This vent hose meets industry standards for safety and compliance, making it a reliable choice for your ventilation needs.