Ford E 350 box van is a perfect plumbers or HVAC truck, but is also useful in any number of different professions such as remodeling, mobile mechanic, locksmith, and other service industry uses to name a few. If you could use a truck that has storage for tools and parts and want a space that you can stand up in (74 interior height) that is enclosed to do work in or keep larger items out of the weather and public view. Runs great.