Growth Science Strength - 55 GAL / 208 L Controllers thumb and finger loops are

thumb and finger loops are included to help prevent sleeves from riding up

Includes optional hardware to secure three 120mm fans onto the grille

We recommend at least one ft3/S of airflow to ensure efficient cooling

If the probe face is dirty

Growth Science Strength - 55 GAL / 208 L Controllers thumb and finger loops areGrowth Sciences Strength is a silica supplement designed to strengthen cell walls. Strength was specially formulated to work with the Growth Science nutrient regimen to reduce stress while providing additional potassium at the early flowering stage to help the plant meet increased nutrient demands. Why use Strength? Silica is a necessary element in plants that is often overlooked. Silica strengthens cell walls and gives plants sturdy stalks and stems