









❄️ Keep your airflow flawless and your space comfortable—never let unwanted drafts crash your vibe!
The neverest® RK 4" Professional Backdraft Shutter Damper Connector is a robust HVAC accessory crafted from galvanized steel and aluminum, designed exclusively for metal ducts. It features an automatic flap with a stainless steel spring and foam strip to prevent backflow and noise, operating efficiently across a wide temperature range (14°F to 140°F). Easy to install horizontally or vertically, it enhances ventilation systems in air conditioners, dryers, exhausts, and heating ducts, backed by a 2-year warranty.




| Size | 4 Inch |
| Material | Galvanized Steel |
| Brand | neverest |
| Color | Silver |
| Item dimensions L x W x H | 22.44 x 20.47 x 15.75 inches |
| Connector Type | Flange |
| Exterior Finish | Aluminum |
| Thread Type | CW |
| Item Weight | 140 Grams |
| Number of Pieces | 1 |
| Manufacturer | neverest |
| Part Number | 40545030039031 |
| Item Weight | 4.9 ounces |
| Product Dimensions | 22.44 x 20.47 x 15.75 inches |
| Is Discontinued By Manufacturer | No |
| Finish | Steel |
| Item Package Quantity | 1 |
| Usage | Use in air conditioners (AC), dryers, exhaust, extractor or range hoods, heating ducts, vents, and other HVAC applications. |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | 2 years |
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