Ona Block, Polar Crystal, 6 oz pest-and-disease-control • Use with any media

• Use with any media absorbent or repellent

lightweight

This unique blend of carbohydrates and amino acids is extremely beneficial for all stages of plant development

• The most stable output frequency of any ballast

Ona Block, Polar Crystal, 6 oz pest-and-disease-control • Use with any mediaThe ONA Block is ideal for small areas such as closets, foyers, attics, cars, gym bags, boats, kitchens, garbage cans, cupboards or vents. Simply remove the cap, or punch several small holes in the cap and place in desired location. The ONA Block measures 3" x 3" and will fit in most places. The ONA Block will release its powerful odor neutralizing agent and keep the location free from undesirable odors. Replace as necessary.