MBSD PIPES provides free UPS or USPS shipping options on all domestic (USA Destination) orders valued in goods starting at $25 USD. In addition we offer free USPS Priority to all FPO/APO/DPO destined orders. The Free Shipping option is calculated upon the lowest cost and most efficient route for your order's destination. For USA Destination orders over $75 USD that select a faster than the cheapest delivery method, we will credit the final shipment cost the difference between the two shipment methods.