Guys,
A local guy here has a pair of Keene 512E pumps. I am having a hard time finding information on this pump type and I don't have any books to look it up. Hopefully the image will show up in my post. The guy is asking $350 each. I'm thinking it's a bit too high and want an idea of what they are work so I can make a reasonable offer to him. Any help would be appreciated.

Thanks


Attachments
Keene512E-1.jpg