Black + White Poly, 100 ft x 10 ft, 5.5 mil, Roll

Black + White Poly is a waterproof alternative to metallized film for grow areas. It is a heavy-duty plastic, 5.5 mil, 3' long folded roll that folds out to 10'. BLACK side - for sealing in light and preventing IR leaks. WHITE side - for reflection and more even growth cycles.