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Grower's Edge Block Covers 4 in (40/Pack)
No arch lip allows you to maximize your inner tray space
fit directly onto the ducting
All Grainfather G30³ units come with a 3-year warranty
This environmental humidifier features an onboard controller that is equipped with smart humidity and timer programming
GH CALiMAGic 6 Gallon 55gal Grower's Edge Block Covers 4CALiMAGic is a concentrated blend of readily available calcium and magnesium. It is formulated to assist fast growing plants by preventing secondary nutrient deficiencies. CALiMAGic helps optimize plant nutrition and enhances plant growth and development while preventing blossom end rot and tip burn in many crops, such as tomatoes and lettuce as well as other calcium intensive plants.
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