









🌬️ Seal the deal on silent, smart airflow!
The neverest® RK 4 inch Backdraft Shutter is a premium galvanized steel ventilation accessory featuring aluminum damper blades, dual stainless steel springs for automatic flap operation, and a rubber seal for airtight, noise-free closure. Designed exclusively for 100mm metal ducts, it prevents unwanted air backflow, enhancing HVAC efficiency and comfort in residential or commercial ventilation systems.




| Manufacturer | neverest |
| Part Number | 40545030039031 |
| Product Dimensions | 57 x 52 x 40 cm; 140 g |
| Manufacturer reference | 40545030039031 |
| Size | 100mm |
| Colour | Silver |
| Material | Alloy Steel, Rubber, Stainless Steel |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 140 g |
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