Grenco Science is victim to product counterfeits available for purchase across the Web and in stores. These unauthorized replicas are not engineered to the quality standards upheld by Grenco Science and any purchase thereof will not be covered under Grenco Science’s one-year warranty (electrical components), under any circumstance. Do not purchase from eBay, Rakuten, Amazon or any other third-party website. To ensure optimum product quality, safety, and service, always purchase from www.gpen.com or contact the Customer Service Department, Monday through Friday 8:00am to 5:00pm PST, to find an authorized retailer near you.
If you have any further inquiries, please contact our Customer Service Department anytime Monday through Friday, 8:00am to 5:00pm PST.
Phone: (800) 948-7480