Flashgro on white 4'x25' air-purification Big Mama is Grodan's largest

Big Mama is Grodan's largest block ever produced

Once you've started to sprout

pumping column

so pre-treating the water and removing them is crucial to a properly operating filter system

without retail wrapping or labeling

Flashgro on white 4'x25' air-purification Big Mama is Grodan's largestFlashgro is a highly reflective film consisting of a metalized polyester surface with a tough woven poly backing material. Flashgro reflects both heat and light in an even dispersed pattern and is great for use anywhere in the grow room as it can be stapled, nailed, or glued to any surface. This film's high durability makes it reusable and easy to clean.