I'm guessing that that water heater is made by Rheem. There are only 3 manufacturers of water heaters here in the good old USA, Rheem, A.O.Smith and Bradford-White. Most are some variations of Rheem and A.O. (Supposedly Bradford only sells to plumbing professionals like myself.) Most heaters these days have a six year warranty by the factory, covering parts only, and 1 year warranty on labor. You would still have to pay someone labor to repair it if the heater is over a year old. If who you hire services that brand they should have the parts in their truck and be able do deal with the warranty paperwork. The warranty time is determined by the manufacture date. If your buying a deal off of Craigslist, who knows what you are getting. If you are willing to take that risk, that's fine. I'm not familiar with that brand, it's probably as good as any, just the warranty might be an issue. Unless it starts leaking or it malfunctions and burns up it is usally repairable.---The Captain

Website

Here is a link that might be useful: American

Hmmm...Looks like a variation of A.O.Smith.

Here is the A.O. website http://www.hotwater.com/

Again, they are probably as good as any, just be concerned about warranty---The Captain

I looked at the Whirpool at Lowes. The box notes that it is made by the American Water Heater Company in TN.