Installed new Rheem 50 gallon natural gas water heater with new thermal expansion tank, ball valve, drip pan, and leak alarm. Heater meets all local code requirements. In addition technician installed a new main shut off which is a 1/4 turn ball valve. After work was performed technician restored water back to the home checked for leaks and found none. Technician will return at a later date to install the anode rod upgrade kit due to the anode rod not being in stock.