what is the diameter of the round pipe? I need 120mm

Good day, There is no 120mm if you have a ventilation pipe of 125mm, then take a 125mm VKE

Hi. Can this be used for a gas boiler flue. Many thanks

Hi Kirsten t , mmm this question should be directed to your boiler manufacturer. Boiler flues should not be obstructed in any way. If you want to provide a flue low pressure equalizing valve, using a corrosion proof material, such as stainless steel, it would have to be mounted in an adapter ‘box’ to provide for full deflection of the louvre plates, when the pressure in the flue is below atmospheric pressure. Mounting it inside the flue, would expose the mechanism to soot and or creosote ( depending on the fuel you are using ) In the exhaust gas flow is not good practice. I would strongly advise asking your boiler manufacturer this question. ‘Google’ their ‘official’ web site, ask for technical support . In my experience, I have found the ‘expert engineers ‘ will give you a definitive answer. It is very important not to interfere with the aspiration of the boiler , which has been carefully calculated, to provide efficient combustion and compliance with emission regulations .

Can it be used for tumble dryers ?

Good morning, you can use the VKE 100 for your tumble dryer because it is made of stainless steel and will not rust.

Hi, i bought 3 4inch air vents on 4th feb. going to buy another 4" & 5" & see that you have put the price up by £5! what is the reason for that?

Good day, At the beginning of the year, the suppliers raised surcharges, these must be apportioned.

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VKE Air Vent Covers Exterior 100mm Gravity Grille Backdraft

VKE Air Vent Covers Exterior 100mm Gravity Grille Backdraft

Product ID: 116445940

Details

Brand
calimaero
Colour
Steel
Item length
158
Item weight
0.18 Pounds
Manufacturer
calimaero
Material
Stainless

🔄Auto-closing shutter flaps

🧰Easy install with included screws

🛡️Anti-rust stainless steel

C$3789

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Description

🌬️ Elevate your airflow with style and smart protection!

PRECISION FIT SEAL - Includes a rubber gasket ensuring a tight, noise- and odor-blocking seal on 100mm ducts.
SMART AUTO SEALING FLAPS - Gravity-driven louvers close instantly to block backdrafts, pests, and weather intrusion.
EFFORTLESS DIY INSTALLATION - Pre-drilled holes and screws make setup quick and tool-friendly for any home upgrade.
DURABLE STAINLESS STEEL ARMOR - Crafted from corrosion-resistant brushed stainless steel for lasting outdoor performance.
VERSATILE VENTILATION SOLUTION - Perfect for HVAC, passive ventilation, and heat recovery systems—upgrade your airflow game.

The VKE Air Vent Cover Exterior 100mm Gravity Grille Backdraft is a premium stainless steel vent cover designed for 100mm ducts. Featuring corrosion-resistant materials, auto-closing shutter flaps, and a rubber gasket for airtight sealing, it prevents backdrafts, pests, and weather intrusion. Easy to install with included screws, it’s ideal for HVAC, passive ventilation, and heat recovery systems, combining durability with efficient airflow management.

Specifications

ASIN	B07L97878K
Best Sellers Rank	278,312 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,373 in Registers, Grilles & Vents
Brand	calimaero
Colour	Steel
Country of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (3,964)
Item Dimensions L x W	15.8L x 15.8W centimetres
Item Length	158 Millimetres
Item Weight	0.18 Pounds
Manufacturer	calimaero
Material	Stainless Steel
Nominal Wall Thickness	0.5 till 1.5 millimeter millimeters
Outside Diameter	100 Millimetres

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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C$3789

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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