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Draft Blocker - Backdraft Damper Duct (4'' Inch)

Draft Blocker - Backdraft Damper Duct (4'' Inch)

Product ID: 603372613

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⚙️stainless steel spring & axis

🌬️prevents backdraft airflow

🛠️4'' galvanized steel build

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Description

🌬️ Seal the draft, own the comfort — no more unwanted air sneaks!

EASY PUSH IN INSTALLATION - Quick setup with horizontal or vertical mounting for maximum versatility.
OPTIMIZED AIRFLOW CONTROL - Effectively blocks unwanted backdrafts to maintain fresh, clean ventilation.
UNIVERSAL FIT FOR 4 DUCTS - Seamlessly integrates with most residential and commercial ventilation systems.
PRECISION STAINLESS STEEL MECHANISM - Smooth, reliable flap operation with premium spring and axis materials.
DURABLE GALVANIZED STEEL CONSTRUCTION - Engineered for long-lasting strength and corrosion resistance.

The 4'' Draft Blocker Backdraft Damper is a robust ventilation accessory crafted from galvanized steel with aluminum flaps and stainless steel spring and axis. Designed to prevent reverse airflow in HVAC systems, it fits standard 4-inch ducts and installs easily by pushing into the pipe. Ideal for residential, commercial, and industrial use, it enhances air quality and energy efficiency by stopping backdrafts in exhaust fans, range hoods, and heating ducts.

Specifications

Manufacturer	dojobkinb
Package Dimensions	16.21 x 12.8 x 9.3 cm; 132 g
ASIN	B099R69LM2

Have a Question? See What Others Asked

Can this be used for inbound furnace air to keep out bugs and cold when not on?

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$84

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