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.

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.

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.

Do u make a 7 inch inline damper?

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

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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

Product ID: 91224614

Details

Brand
neverest
Color
Silver
Connector Type
Flange
Exterior Finish
Aluminum
Item Weight
140 Grams
Item dimensions L x W x H
22.44 x 20.47

🔄Auto flap opens/closes at low air volumes

❄️Operates from 14 to 140 °F temperature range

🛠️Galvanized steel body for durability

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Description

🌬️ Never let bad air crash your space—seal in freshness with Neverest®!

BUILT TO LAST - Galvanized steel and aluminum construction ensures long-term reliability in demanding HVAC environments.
SILENT EFFICIENCY - Internal foam strip eliminates rattling, delivering whisper-quiet performance that keeps your space peaceful.
VERSATILE INSTALLATION - Designed for horizontal or vertical mounting in metal ducts, fitting seamlessly into ACs, dryers, exhausts, and range hoods.
EFFORTLESS AIRFLOW CONTROL - Smooth-running spring and stainless steel axis enable automatic flap operation with minimal air pressure—no more wasted energy.
FOMO PROOF YOUR AIR QUALITY - Prevent cold drafts and unwanted backflow effortlessly—join thousands of pros who trust Neverest for clean, fresh air.

The neverest® RK 4" Professional Backdraft Shutter Damper Connector is a premium HVAC accessory crafted from galvanized steel and aluminum, designed exclusively for metal ducts. It features a stainless steel axis and spring for durability, operates efficiently within a 14 to 140 °F range, and automatically opens and closes at low air volumes to prevent unwanted air backflow. Easy to install horizontally or vertically, it’s ideal for air conditioners, dryers, exhausts, and range hoods, ensuring quiet, reliable performance that enhances indoor air quality and energy efficiency.

Specifications

ASIN	B011INHF5A
Best Sellers Rank	#84,412 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #134 in HVAC Ducting
Brand Name	neverest
Color	Silver
Connector Type	Flange
Customer Reviews	4.5 4.5 out of 5 stars (2,062)
Exterior Finish	Aluminum
Item Dimensions	22.44 x 20.47 x 15.75 inches
Item Weight	140 Grams
Manufacturer	neverest
Manufacturer Part Number	40545030039031
Manufacturer Warranty Description	2 years
Material Type	Galvanized Steel
Number of Pieces	1
Size	100 mm
Thread Type	CW
Unit Count	1 Count

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Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ecuador.

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