4 Inch Black Ducting Features:
Our 4 Inch Light Proof Black Ducting, is strong, durable, and as the description indicates…light proof.
That means that when properly installed no light will penetrate the ducting and disrupt your plants’ lights out schedule. The ducting is also durable with multiple layers of inner liners to protect from punctures from sharp objects. Our Light Proof Ducting is available in 4″, 6″, 8″, 10″, and 12″ diameter.