🌬️ Stop drafts before they start — the pro’s choice for flawless airflow!
The neverest® RK 6" Professional Backdraft Shutter Damper Connector is a robust, galvanized steel and aluminum damper designed exclusively for metal ducts. It features an automatic, low-volume air flap with a stainless steel spring and foam strip to eliminate rattling. Operating efficiently between 14°F and 140°F, it fits 6-inch ducts and supports versatile HVAC applications including ACs, dryers, and exhaust vents. Easy to install horizontally or vertically, it offers a durable, noise-free solution backed by a 2-year warranty.
| Size | 6 Inch |
| Material | Steel |
| Brand | neverest |
| Color | Grey Or Silver |
| Connector Type | Trap |
| Thread Size | 6 inch |
| Exterior Finish | Galvanised steel |
| Thread Type | Metric Tapered |
| Item Weight | 209 Grams |
| Number of Pieces | 1 |
| Global Trade Identification Number | 04054503005327 |
| Manufacturer | neverest |
| Part Number | 40545030039031 |
| Item Weight | 7.4 ounces |
| Country of Origin | China |
| Item model number | 4054503005327 |
| Is Discontinued By Manufacturer | No |
| Finish | Steel |
| Item Package Quantity | 1 |
| Cutting Diameter | 150 Millimeters |
| 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 |
| Assembled Diameter | 150 Millimeters |
E**F
Neverest® RK 5" is an Excellent duct damper and Works with the slightest amount of air movement.
Excellent duct damper. I order and received a different 5" damper bade by ECOPRO originally but there were two springs on the 5" damper flaps, and it took quite a force to push open the flaps, so I ended up returning that and ordering the Neverest® RK 5" Backdraft Shutter Damper. The damper opens with a minimal amount of pressure and the quality of the unit is great. My issue was that we have a down draft cooktop and when there was a descent amount of wind outside, we would get a flow of cold air (IT was in the early spring) blowing out the downdraft grill on the cooktop, so I needed to prevent the wind draft from blowing into the ducting from outside. I installed the Backdraft Shutter Damper in a 5" metal flexible duct, and it took about 45 minutes from start to finish to complete the job. Now even with the slightest outside breeze the damp shuts and does not allow any draft into the house!
D**R
Good Quality- Worked For City Code Inspection Requirement For Outdoor Commerical Dryer
Good Quality- Worked for City Code Inspection Requirement for outdoor Commerical Dryer. Install straight forward with arrows as directed for flow / operation of ducting flapper. Installed with very short sheet metal screws to prevent lint build up inside ducting. Can be installed with hose clamps if non city code requirement.
M**Y
Two springs
This has two springs. I ended up removing one of the springs to make it open easier. The foam lip had a small gap I just taped up. It installed easily and fixed the backdraft from our stove top.
J**.
Perfect as the description
Worked perfect, no more wasted AC or heating. Did have to caulk around the perimeter and then use metal duct tape
L**Y
Effective!!
For years my kitchen exhaust was extremely cold Air coming in cold from vent through the 2 car garage about20 feet of 6 inch ventAnyway quick install on flexible and rigid( perfect fit. No cutting or crimping) taped with aluminum tape done! No back draft at all. Thank you makers of this product !
L**E
works great for multi family cooking vent system
use this to block the backflow cooking smell from neighbors in the same building. it blocks 99% of the smell, and easy clean. recommended.
A**R
Works great
Works great!!! Thanks
A**R
Poor Quality
Catches on its own hinges and doesn’t not open each time. Looks like this will get struck closed and the operator will not k ow because it’s in the attic and cannot be seen. I am returning this now.
Trustpilot
3 days ago
2 weeks ago
