Bathrooms From Travis Perkins R1162W Gravity Self Closing Grille White 100mm

Lock in heat and shut out cold drafts with the Bathrooms From TP R1162W Gravity Self-Closing Grille. Purpose-engineered as an intelligent, energy-saving external termination piece for standard 100mm (4-inch) inline ducting and domestic extractor fans, this white vent terminal features a smart, multi-flap gravity shutter layout. The lightweight flaps open smoothly under minimal fan pressure to release humid air, then snap tightly shut the instant airflow drops. Outfitted with three independent, lightweight, hinged horizontal flaps. Eliminates cold air backdraughts completely. The flaps lift freely under minimum pressure from the extractor fan to vent moist air, but fall shut automatically when the fan turns off, preventing cold wind from chilling the property. Creates a closed, physical seal across the 4" pipeline when not in active use. Helps reduce household heat loss and prevents chilly crosswinds from howling through your ventilation channels—lowering energy bills and making bathrooms feel significantly warmer during winter months. Fully closing interlocking slatted shutters that sit completely flush when resting. Serves as a mechanical barrier that keeps driving rain, wind-driven debris, mice, and large insects from creeping into the external open duct track and nesting inside the building.