Light Proof Black Ducting Size:6'' Light Proof Black Ducting Stealth-RO150/300 RO Membrane reduces 89%+

Stealth-RO150/300 RO Membrane reduces 89%+ of PPM of total dissolved solids

2 times more efficient than ordinary grow lights

formulated for use during transplanting and the growth/vegetative phase

Bloom is a phosphorus-heavy formula for enhancing flower production

Light Proof Black Ducting Size:6'' Light Proof Black Ducting Stealth-RO150/300 RO Membrane reduces 89%+DL 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. DL Light Proof Ducting is available in 4", 6", 8", 10" , 12"