Certis USA, LLC certisbio.com customerservice@certisbio.com (800) 250-5024 Double Nickel 55 is a broad spectrum preventive biofungicide for control or suppression of fungal and bacterial plant diseases. Location Address 9145 Guilford Rd, Ste 175 Columbia, MD 21046 Mailing Address 9145 Guilford Rd, Ste 175 Columbia, MD 21046 Products & Services Vineyard Supplies Fertilizer and Chemicals Conventional Update Profile