While there are no guarantees, as environmental conditions are unique from location to location, we expect that the mast of the CM375 would endure for 20 to 25 years in most coastal regions. In non-corrosive environments, we estimate the mast would endure for 50+ years. Having said that, because most of the parts are galvanized steel or stainless steel, they will corrode over time and eventually need to be replaced.