4.0 gpm natural gas Ecotemp water heater. I bought it at Home Depot 2 years ago. I bought it for my mobile home to replace our old water heater. It's great for mobile homes, cabins, or for very small homes. I had to move and I don't need it anymore. Super easy to install, and I still have the installation guide. Paid 395$ asking 275$ obo. Text me if interested 785 259 7505