Free shipping rules are:

We now offer free outbound domestic ground shipping on purchases made through our website. If a faster shipping method is selected or the shipment is international, shipping charges will apply. Additional duties, taxes or fees may apply to International Shipments. Offer does not apply to previous purchases or international orders. Offer is non-transferable and subject to change without notice. Offer is only valid on purchases made through our website. Free shipping will be via UPS Ground or Priority Mail at our discretion. Please note that the estimated Lead Time still applies before the item ships out. Be sure to consult the product’s Lead Time before you order with expedited shipping, and call us if you have any questions or concerns. Other restrictions may apply.