DL Wholesale Light-Proof Black Duct - 12 in x 25 ft

Flexible Light-Blocking Ventilation Run - 25 ft Length

Ventilation ducting that lets light through can disrupt a dark cycle in an indoor cultivation space. This black flexible duct carries intake and exhaust air while its blackout coating keeps light out when it is properly installed. A spring steel wire helix gives it flexibility for routing and helps it resist punctures and tearing.

At 12 in in diameter and 25 ft long fully extended, this single length suits growers running a dedicated grow room, a larger tent or a greenhouse ventilation line who need enough duct to reach from fan to filter to outlet without joining sections.

Key Features & Benefits

• Blackout coating — blocks light from entering through the duct wall when properly installed.
• Spring steel wire helix — adds flexibility for easy installation and resists punctures and tearing.
• Flame resistant aluminum — gives a durable, heat-tolerant duct wall.
• Temperature range of 0°F to 185°F (-18°C to 85°C) — covers typical ventilation conditions.
• 12 in x 25 ft extended — one length for long intake or exhaust runs.

Who Should Use DL Wholesale Light-Proof Black Duct

Indoor growers, greenhouse operators and commercial cultivation teams who need to vent equipment and rooms while protecting a lights-out schedule. It also suits other ventilation jobs such as kitchens and bathrooms.

About DL Wholesale Light-Proof Black Duct

This is a flexible aluminum ventilation duct from DL Wholesale. It is 12 in in diameter and 25 ft long fully extended, with a blackout coating and a wire helix for reinforcement. It is sold as one unit.

Frequently Asked Questions

Q: Will light get through this duct?
A: The duct has a blackout coating designed to block light. Light can still enter at poorly sealed connections, so secure each joint properly during installation.

Q: How long is the duct?
A: It is 25 ft long when fully extended and 12 in in diameter. It compresses for storage and shipping.

Q: What is a wire helix?
A: A wire helix is a coiled wire built into the duct wall. It holds the round shape open and lets the duct bend without collapsing.

Q: Can I use it for both intake and exhaust?
A: Yes. It is designed for intake and exhaust piping in grow rooms, tents and similar spaces.

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