“A year ago, a new water heater was installed. The new heater didn't line up with the exhaust pipe, so I purchased the elbow to connect the heater to the exhaust pipe.”
“Make sure you get the galvanized steel and not the aluminum one. I had 3 aluminum elbows come apart at the adjustable joint with just a little side pressure and they do not go back togeather. The steel ones are sturdy and work great.”