DL Wholesale Light-Proof Black Duct - 4 in x 25 ft

Move Air Without Light Leaks - 25 ft Run

Light leaking through ventilation ducting can disrupt a lights-out schedule. This flexible aluminum duct carries a blackout coating that is rated light proof, so intake and exhaust runs can pass through a room without letting light in when installed properly. A built-in corrosion-resistant wire helix holds the duct's shape.

The 4 in diameter, 25 ft extended length suits hobbyists running a single tent as well as growers who need a long run between fans, filters and a room. Cut or compress it to fit the space you have.

Key Features & Benefits

• Blackout coating — blocks light along the length of the duct.
• Flame resistant aluminum — a sturdy material for ventilation runs.
• Wire helix reinforcement — keeps the duct open and flexible for bends.
• Wide temperature range — rated from 0°F to 185°F (-18°C to 85°C).
• Non-insulated design — suits standard intake and exhaust runs.

Who Should Use DL Wholesale Light-Proof Black Duct

Growers who vent tents, grow rooms or greenhouses and need light-tight air paths will find it useful. It suits both home and licensed commercial setups.

About DL Wholesale Light-Proof Black Duct

This is a flexible, non-insulated aluminum duct, 4 in in diameter and 25 ft long when fully extended. It has a blackout coating and a corrosion-resistant wire helix. It is sold individually.

Frequently Asked Questions

Q: Is this duct really light proof?
A: It has a blackout coating rated light proof. When installed properly, light should not pass through the duct wall. Seal the connections as well.

Q: What size is it?
A: It is 4 in in diameter and 25 ft long when fully extended. It compresses for shipping and storage.

Q: Is it insulated?
A: No, it is a non-insulated duct. It suits standard intake and exhaust runs.

Q: What does the wire helix do?
A: The helix is a coiled wire built into the duct wall. It holds the tube open and lets it bend without collapsing.

Q: What temperatures can it handle?
A: It is rated for 0°F to 185°F (-18°C to 85°C). That covers typical ventilation use.