Duct Tube 12 - Flexible Dual-Layer Alum. 25' long, for 12" Duct Fan Lighting dim and boost multiple (USB-compatible)

dim and boost multiple (USB-compatible) Hydrofarm ballasts at once—up to 256 in each of two independent zones for a total capacity of 512 ballasts

making them ideal for a variety of uses by farmers

It can be used in hydroponic applications of all kinds

Note: Not compatible with MAC systems or smart phones

Fluence DC Extender

Duct Tube 12 - Flexible Dual-Layer Alum. 25' long, for 12" Duct Fan Lighting dim and boost multiple (USB-compatible)Designed for ventilation applications including HVAC, dryer, grow rooms and tents. Four layer design makes it more durable and resistant to leaks, tears, and cuts. Steel wire spiral structure is flexible and easy to install in hard to reach places. Constructed of aluminum and thermoplastic; tube can be shortened for various applications. Ducting Size: 12 Length: 8 feet Includes two stainless steel 12" duct clamps PRODUCT DESCRIPTION This ducting is