Non-Woven Poly 6 Mil - Blackout - 32' x 100' Synthetic Pro Edition Made of waterproof and marine-grade

Made of waterproof and marine-grade components

optimal micronutrients

no cumbersome installation process and risk of parts damage

it stimulates the production of phytoalexins (a plant's natural defense against microbial attacks)

Non-Woven Poly 6 Mil - Blackout - 32' x 100' Synthetic Pro Edition Made of waterproof and marine-gradeThe Blackout Greenhouse poly ensures no light will reach your plants until you want it to! Blackout Poly is the ideal covering for light deprivation greenhouse setups and is black on one side with a reflective white outer layer to further prevent light penetration. Using blackout poly on your greenhouse is found to result in improved production and increased plant yield that comes from growing year round regardless of weather conditions, and it is