neverest® RK 4" Professional Backdraft Shutter Damper Connector Duct Fits Only with Metal Ducts

neverest® RK 4" Professional Backdraft Shutter Damper Connector Duct Fits Only with Metal Ducts

Q: Hi, is the 5" made to go on to 5" duct

I purchsaed the 4 inch for my clothes dryer exhaust vent to the outside of my house. They are true to size and a 5 inch should fit a 5 inch duct perfectly. This is an excellent addition to either a stove vent or clothes dryer vent. It prevents back draft air from entering the duct and also prevents conditioned air from escaping my house.

Q: Hi - would it be best to put this at the end of the vent (near the outside) or on the house closest to the dryer? My vent is installed in the soffit.

Always at the end of the vent where the air exhaust to the outside of your house. You want to keep cold and hot air from being forced into your house on windy days as well as insect and birds from nesting. I have one on my kitchen stove vent on the outside brick wall and on my dryer vent on the side of my house. Before i installed it my laundry room was cold all winter from wibd being forced in.

Q: For my cooktop vent, i have a broken plastic damper i need to replace. this one is 5.5in od, what product would work for this?

I,m using a reducer on the top of the vent hood over the cook top from 5 inch vent to 4 inch duct and then i am using the 4 inch pressure activated back draft your referring to on the outside wall with an ordinary clothes dryer rain shield over the opening. The dryer vent pipe cover should have a wind / rain shield incorporated in it. Most dryer vent covers have a plastic door which does not permit a positive closer in windy conditions. I also have the spring loaded damper door on my clothes dryer. These doors are great for preventing blow back into your house when either the cooktop vent or dryer are not in use.

Q: Do u make a 7 inch inline damper?

Good Morning, the RK is available in 160mm or 200mm

4.4/5

Product ID: 643949745

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Details

Size
4 Inch
Material
Galvanized
Brand
neverest
Colour
Silver
Item dimensions L x W x H
57 x 52 x 40
Connector Type
Flange

🔄automatic low-volume airflow flap

❄️operates from 14°F to 140°F

🛠️4-inch galvanized steel build

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neverest® RK 4" Professional Backdraft Shutter Damper Connector Duct Fits Only with Metal Ducts

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Description

🌬️ Keep your airflow flawless—because your space deserves the best!

EFFORTLESS INSTALLATION - Snap-in design fits seamlessly into 4-inch metal ducts for quick setup.
OPTIMAL AIRFLOW CONTROL - Automatically opens and closes to prevent unwanted drafts and maintain indoor comfort.
VERSATILE HVAC COMPATIBILITY - Perfect for ACs, dryers, exhausts, and range hoods—your all-in-one airflow guardian.
DURABLE GALVANIZED STEEL CONSTRUCTION - Engineered for longevity and corrosion resistance in metal ducts.
PRECISION ALUMINUM FLAP WITH STAINLESS STEEL SPRING - Ensures smooth, silent operation without rattling.

The neverest® RK 4" Professional Backdraft Shutter Damper Connector is a robust ventilation accessory crafted from galvanized steel with aluminum flaps and stainless steel springs. Designed exclusively for metal ducts, it fits 4-inch pipes and operates efficiently between 14°F and 140°F. Its automatic flap mechanism prevents backflow of air, enhancing HVAC performance while minimizing noise and drafts. Ideal for a variety of ventilation systems, it offers easy installation and reliable durability for professional-grade airflow management.

Specifications

Size	4 Inch
Material	Galvanized Steel
Brand	neverest
Colour	Silver
Item dimensions L x W x H	57 x 52 x 40 Centimeters
Connector Type	Flange
Exterior Finish	Aluminium
Thread Type	CW
Item Weight	140 Grams
Number of Pieces	1
Manufacturer	neverest
Item part number	40545030039031
Product Dimensions	57 x 52 x 40 cm; 140 g
ASIN	B011INHF5A

Have a Question? See What Others Asked

Hi, is the 5" made to go on to 5" duct

Hi - would it be best to put this at the end of the vent (near the outside) or on the house closest to the dryer? My vent is installed in the soffit.

For my cooktop vent, i have a broken plastic damper i need to replace. this one is 5.5in od, what product would work for this?

Do u make a 7 inch inline damper?

Common Questions

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