Vent Systems Ø100 mm / 4" Inch Black Air Plastic Cover Louvered Outdoor Opening Flap Built in Pest Guard Screen HVAC for Home Improvement

FITS STANDARD 100 MM / 4” DUCTS – Compatible with all 100mm / 4 inch round ventilation ducts, ensuring perfect fit for HVAC exhaust systems in homes. Works well as a wall vent or outdoor vent cover for exterior ventilation openings. MADE OF DURABLE ABS PLASTIC – Weather-resistant and UV-stabilized material prevents cracking, fading, and damage from rain, wind, or sun for long-lasting performance outdoors. Suitable for air vent covers for walls in residential or utility buildings. BUILT-IN FLAP & MESH SCREEN – Gravity louvers and mesh screen protects from dust and debris while keeping airflow consistent and efficient in your ventilation system. Can also be used as an extractor fan vent cover for kitchen or bathroom exhaust systems. QUICK & EASY INSTALLATION – Designed for simple DIY wall mounting with pre-drilled holes. No professional tools required, install securely in minutes. (SCREWS NOT INCLUDED) Also suitable as a shed vent to improve airflow in garden buildings and storage spaces. IDEAL FOR HOME VENTILATION – Perfect for bathrooms, kitchens, garages and utility rooms. Protects ducts from weather while ensuring clean, reliable exhaust airflow.