What carrier do you use for shipping? Boostopia August 21, 2019 17:35 Updated Follow Second Nature (formerly FilterEasy) uses FedEx SmartPost. If you have any special restrictions on delivery of packages, contact us for help. Related articles How can I track my shipment? You offer a free trial, so why do you need my card information? How much is shipping? How do your filters compare to my current filters? How do I cancel my subscription? Comments 0 comments Article is closed for comments.