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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🌬️ Stop the backflow, boost your airflow – ventilation perfected!

EFFORTLESS INSTALLATION - Push-in design fits snugly into 8-inch ducts for quick, tool-free setup.
VERSATILE COMPATIBILITY - Ideal for ACs, exhaust fans, range hoods, and heating ducts across residential and commercial spaces.
OPTIMIZED AIRFLOW CONTROL - One-way damper design prevents unwanted backdrafts, enhancing ventilation efficiency.
DURABLE METAL CONSTRUCTION - Galvanized steel body with aluminum flaps ensures long-lasting performance and rust resistance.
PRECISION ENGINEERED SPRING - Stainless steel spring guarantees smooth flap movement for reliable airflow regulation.

The Kikerike 8 Inch Draft Blocker is a robust backdraft damper crafted from galvanized steel and aluminum, featuring a stainless steel spring for smooth flap operation. Designed for easy push-in installation into 8-inch ventilation ducts, it prevents air backflow to optimize ventilation in residential, commercial, and industrial settings.

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KD 15.97

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TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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Manufacturer	Kikerike
Item Weight	281 g
Package Dimensions	22.5 x 21.49 x 9.4 cm; 281 g
Size	8 Inch
Color	Sliver
Material	Metal
Batteries Included?	No
Batteries Required?	No

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

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