If you are not satisfied with the product or it contains any kind of defect you can return it via mail or send it to your local Advance Auto Parts store within 45 days of your purchase. The shipping costs are non-refundable. The product must be in the original state, the receipt or invoice must be preserved. Sometimes a restocking fee is charged for some commercial equipment and you will have to pay the cost of return shipping. If you show the invoice, the money will be credited to your credit card otherwise they will provide a gift card of the same amount.