DL Wholesale Backdraft Damper - 6-in Duct - Galvanized Steel - Rubber Gasket

Stop Reverse Airflow in Your Ductwork - 6-in Duct Fit

When an exhaust fan shuts off, outside air, odors and humidity can drift back down the duct into your grow space. This backdraft damper closes automatically when airflow stops, so air moves in one direction only. The galvanized steel body resists corrosion, and a rubber gasket comes pre-installed on the exterior to help seal the connection.

This unit is sized for 6-in ducting, which suits hobbyists and regular indoor growers running a single inline fan on a small or mid-sized room. Commercial growers with several duct runs can add one damper per run.

Key Features & Benefits

• Prevents reverse airflow — keeps air from flowing backward when the fan is off.
• Galvanized steel construction — gives a durable body for ventilation use.
• Pre-installed exterior rubber gasket — helps create an air-tight seal without extra parts.
• Helps retain CO2 and contain odors — limits backflow through the duct.
• Compact body — measures 6 in long, 6 in wide and 5 in high.

Who Should Use DL Wholesale Backdraft Damper 6-in

Use it if you run 6-in ducting for exhaust or intake in a tent, room or commercial space and want to stop backdrafts, odor leaks and unwanted air exchange when fans are off.

About DL Wholesale Backdraft Damper

DL Wholesale makes this backdraft damper from galvanized steel with a rubber gasket pre-installed on the exterior. It is sold individually and measures 6 x 6 x 5 in with a shipping weight of 1 lb.

Frequently Asked Questions

Q: What does a backdraft damper do?
A: It lets air pass in one direction and closes when airflow stops. This keeps air from flowing backward through the duct when the fan is off.

Q: What duct size does this damper fit?
A: This model is made for 6-in ducting. Check your duct diameter before ordering.

Q: Is a gasket included?
A: Yes. A rubber gasket comes pre-installed on the exterior to help produce an air-tight seal.

Q: What is it made of?
A: The body is galvanized steel, a zinc-coated steel commonly used in ventilation parts for its corrosion resistance.

Q: Will it help with odor control?
A: It helps stop odors from traveling backward through the duct when the fan is off. It does not filter air, so pair it with a carbon filter if you need odor removal.

Q: How many come in an order?
A: Each order contains one damper.