This estimate is to replace the expansion tank. The tank is leaking and needs to be replaced. The tank is located in the attic. The tank is 10 feet tall and 10 feet wide. The tank is made of steel. The tank is 10 feet tall and 10 feet wide. The tank is made of steel. The tank is 10 feet tall and 10 feet wide. The tank is made of steel. The tank is 10 feet tall and 10 feet wide. The tank is made of steel. The tank is 10 feet tall and 10 feet wide. The tank is made of steel. The tank is 10 feet tall and 10 feet wide. The tank is made of steel. The tank is 10 feet tall and 10 feet wide. The tank is made of steel. The tank is 10 feet tall and 10 feet wide. The tank is made of steel. The tank is 10 feet tall and 10 feet wide. The tank is made of steel. The tank is 10 feet tall and 10 feet wide. The tank is made of steel. The tank is 10 feet tall and 10 feet wide. The tank is made of steel. The tank is 10 feet tall and 10 feet wide. The tank is made of steel. The tank is 10 feet tall and 10