Ona Block, Polar Crystal, 6 oz pest-and-disease-control Fits in the top duct

Fits in the top duct of the Carbon Air Unit

HPCC BIOFUNGICIDE + MYCORRHIZAE – high porosity

• Use with any media absorbent or repellent

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

Ona Block, Polar Crystal, 6 oz pest-and-disease-control Fits in the top ductThe 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.