Roots Organics CalMag - 55 GAL / 208 L spl_hgc Does not require any additional

Does not require any additional product like a spreader

Maximize the growing space in your greenhouse

55% thicker than other bags on the market

This duct grille was designed to be wall mounted and connected to ducting to act as an air intake or exhaust in various ventilation

Most grow fixtures are sized for 1000 watt lamps leading to an inefficient focus of light

Roots Organics CalMag - 55 GAL / 208 L spl_hgc Does not require any additionalRoots Organics CalMag is a pure and all natural blend of calcium, magnesium and sulfur to support plants during fast growth. By creating a product free of added nitrogen, phosphate, and potassium, we give you control to supplement as needed without affecting primary fertility input ratios. Roots Organics CalMag is ideal for fast growing and heavy feeding plants. Use in combination with high quality base fertilizers like Roots Organics Buddha Grow and