DL Wholesale Light Proof Black Air Ducting, 4 in. x 25 ft. Ducting Size:4 in x 25 ft With soy protein nitrogen

With soy protein nitrogen

or cloth to help remove tougher soils

Custom Cones Push Packs are ideal for those looking for a durable

Calcium Nitrate

Often-overlooked

DL Wholesale Light Proof Black Air Ducting, 4 in. x 25 ft. Ducting Size:4 in x 25 ft With soy protein nitrogenDL Light Proof 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. Available in 5 sizes: 4 in. x 25 ft. 6 in. x 25 ft. 8 in. x 25 ft. 10 in. x 25 ft. 12 in. x 25 ft.