Do NOT click on any vaporpedia.com links. The domain has been compromised and will attempt to infect your system. See https://fuckcombustion.com/threads/warning-vaporpedia-com-has-been-compromised.54960/.
TetraLabs uses a statewide delivery service and does not use the postal, fed-x or other intrastate service. They deliver the next day in most places and I was able to submit my recommendation and order online. Very easy and convenient.