White Ventilation Gravity Grille, 175mm with 150mm Wall Air Vent Cover Plastic Extractor Fan Ducting Vents Covers for Tumble Dryer Duct Shutters HVAC Exhaust Hood

• Non-return Design: The wall air vent cover has three non-return gravity flap outlets when the fan is on, which close when it’s off to prevent backdraft, air or rain penetration and the entry of objects or vermin when the ventilation unit is not in operation.
• Premium Material: Extractor fan ducting vents made from durable, UV and weather resistant ABS plastic for long-lasting performance in all weather conditions. Suitable for indoor and outdoor use. They provide comfortable and reliable long-term use.
• Package Includes: A white plastic air vent with gravity grille. A 175 mm (6.88 inch) external dimension ducting air vent with gravity shutters and a 150 mm (5.90 inch) round rear exit. Designed for exterior walls and compatible with standard round duct systems.
• Easy to Install: This plastic air vent with gravity shutters have four mounting holes for fixing to any wall or surface with screws, simple and secure. If required, seal with mastic, cement or tape. Make sure the slats are in the correct position for optimal functionality.
• Wide Application: This gravity grille cover is perfect for a variety of purposes, including whole-house ventilation, passive ventilation, positive input, HVAC systems and heat recovery systems, as well as covering bathroom and kitchen air conditioning fans.

white ventilation gravity grille, 175mm with 150mm wall air vent cover plastic extractor fan ducting vents covers for tumble dryer duct shutters hvac exhaust hood The one-way airflow flap of the gravity grille blocks wind, rain and backdrafts, thereby improving ventilation efficiency and providing enhanced protection. This vent cover is ideal for use in bathrooms, kitchens, hydroponics setups and whole-house ventilation systems. Product size: 17.5*17.5*4.8 cm/6.88*6.88*1.9 inches Product weight: 154 g Packing size: 22*22*5 cm/8.7*8.7*2 inches Package weight: 154 g Color: White Material: Plastic Inside: 1*White Ventilation Gravity Grille