Waterproof ABS wall flange adapter for duct fan hoses — secure, simple, and compatible with 100 mm or 150 mm duct systems Key benefits Secure, watertight connection: Made from durable ABS, the adapter creates a tight seal between the wall and the ventilation opening to prevent air and water leakage and reduce drafts. Improves ventilation efficiency: By eliminating gaps and leaks at the wall-vent transition, the adapter helps maintain designed airflow and reduces energy loss from the ventilation system. Quick, straightforward installation: Designed for wall mounting so you can fit it fast and with minimal effort during installation or replacement. Flexible compatibility: Available in 100 mm and 150 mm sizes to match common duct and vent-slot dimensions, making it easy to integrate with existing ventilation components. Features and performance Material: Robust ABS for long-term stability and resistance to everyday wear in domestic environments. Function: Acts as a bridge between the duct fan hose and the wall opening, ensuring a sealed, aligned connection that supports consistent airflow. Sizes: Choose 100 mm or 150 mm to match your ductwork and ventilation slots without modification. Practical applications Kitchen extractor fans: Use the adapter to connect the range hood duct to an exterior wall outlet, preventing leaks and maintaining exhaust performance. Bathroom extractor fans: Provide a sealed transition for moisture-prone exhausts to help keep the ventilation system working effectively. Utility and laundry rooms or other ventilation points: Ideal wherever a reliable wall-to-duct connection is needed to preserve airflow and reduce noise or drafts. Why this product Simple, reliable solution for common leakage and alignment problems at wall vent points. Available in two standard sizes and built from ABS to balance durability and ease of fit. Suited for residential ventilation tasks where a clean, watertight wall-vent connection is required.