Can this be used to stop my Hot water tank from blowing out the flame on windy days?

sorry, I did not use it for the flame from HWT.

can this be used on a dryer vent or will the foam seal melt?

I would say the dryer heat could damage or maybe even melt the seal. Maybe you could try removing the gasket and wrap a strip of fiberglass in it’s place.

Would this help keep out bugs?

Yes it creates a barrier and only opens one way from the inside of house

Would this fit between two sections of standard, 4 inch semi-rigid ducting? Looking to add to bathroom vent fan ductwork.

Yes, that's exactly how you would use it. Make sure to buy the correct HVAC aluminum (metallic) duct tape for the connection. A clamp cannot be used bc the crushing pressure would inhibit the flapper from working properly.

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Kikerike 8 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector

Kikerike 8 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector

Product ID: 540996112

🔄One-way airflow backdraft prevention

⚙️Stainless steel spring & axis

🛠️8-inch galvanized steel build

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COP 361191

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Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚫💨 Stop drafts, start comfort — your ventilation’s new MVP!

OPTIMIZED SPRING MECHANISM - Horizontal or vertical installation ensures smooth flap operation every time.
VERSATILE APPLICATION RANGE - Perfect for ACs, exhaust fans, range hoods, and commercial or residential vents.
EFFORTLESS PUSH IN INSTALLATION - Quickly fits into ducts with a simple push, saving time on setup.
PRECISION ONE WAY AIRFLOW CONTROL - Prevents unwanted backflow, ensuring fresh air circulation only when needed.
ROBUST GALVANIZED STEEL CONSTRUCTION - Durable 8-inch damper built to last in any ventilation setup.

The Kikerike 8 Inch Draft Blocker Backdraft Damper is a premium ventilation accessory crafted from galvanized steel with aluminum flaps and stainless steel spring and axis. Designed for easy push-in installation, it ensures one-way airflow to prevent backdrafts in residential, commercial, and industrial duct systems. Compatible with metal ducts, it enhances air quality and energy efficiency by stopping unwanted air recirculation.

Specifications

ASIN	B099JXNM75
ASIN	B099JXNM75
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#77,799 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #156 in Heating & Cooling Ducting Products
Color	Sliver
Customer Reviews	4.5 4.5 out of 5 stars (1,094)
Customer reviews	4.5 4.5 out of 5 stars (1,094)
Date First Available	15 July 2021
Date First Available	15 July 2021
Item Weight	281 g
Manufacturer	Kikerike
Manufacturer	Kikerike
Material	Metal
Package Dimensions	22.5 x 21.49 x 9.4 cm; 281 g
Package Dimensions	22.5 x 21.49 x 9.4 cm; 281 g
Size	8 Inch

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COP 361191

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered 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 Colombia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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