Search Pulldown of Database

I’m a newbie so please bare with me. I’m trying to build a search function that would return a list from a specific database of products. I honestly don’t even know what to call it to so my searches haven’t been very successful in finding a resolution.

Here’s an example of what I want to do below:
http://www.nationalprecision.com/miniature-bearings/

Any thoughts? Is this even possible in wordpress? I’d even be open to paying for a plugin.