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
82 g
Manufacturer
calimaero
Material
Stainless

🔄Auto-closing shutter flaps

⚙️Fits 100mm metal ducts

🛡️Anti-rust stainless steel

₹ 5907

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Description

🌀 Elevate your airflow game with smart, sleek vent covers that work as hard as you do!

SMART AUTO SEAL TECHNOLOGY - Shutter flaps close automatically to block backdrafts, pests, and unwanted noise—keeping your space fresh and quiet.
HASSLE FREE DIY INSTALLATION - Comes with all screws and fits standard tools—get professional-grade results without the pro price or wait.
DURABLE STAINLESS STEEL ARMOR - Crafted from corrosion-resistant brushed stainless steel for lasting protection and sleek modern appeal.
PRECISION FIT FOR METAL DUCTS - Designed specifically for 100mm metal ducts with exact screw hole spacing for effortless, secure installation.
VERSATILE VENTILATION SOLUTION - Ideal for HVAC, passive ventilation, air conditioning, and heat recovery systems—upgrade your home’s airflow game.

The calimaero VKE Air Vent Cover is a premium 100mm stainless steel exterior grille featuring auto-closing shutter flaps that prevent backdrafts, pests, and noise. Engineered for metal ducts, it offers corrosion resistance, easy installation, and versatile use in HVAC and ventilation systems—perfect for millennial professionals seeking durable, efficient home upgrades.

Specifications

ASIN	B07L97878K
Best Sellers Rank	314,523 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,543 in Registers, Grilles & Vents
Brand	calimaero
Colour	Steel
Country of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (3,980)
Item Dimensions L x W	15.8L x 15.8W centimetres
Item Length	158 Millimetres
Item Weight	82 g
Manufacturer	calimaero
Material	Stainless Steel
Nominal Wall Thickness	0.5 till 1.5 millimeter millimeters
Outside Diameter	100 Millimetres

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All products are sourced from US, UK, and UAE. Our prices include international shipping costs, customs duties, payment processing fees and logistics handling to ensure smooth delivery to India. We handle all customs clearance so you don't face any hidden charges later.

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Received my product in pristine condition. Great service overall.

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₹ 5907

Duties & taxes included

In stock

Sold byAmazon IndiaDelivered 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 India.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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