Concept2 is a manufacturer of rowing equipment based in Vermont, USA. It is best known for its air resistance indoor rowing machines (a.k.a. "ergometers" or "ergs"), which are considered the standard training and testing machines for competition rowers and can be found in most gyms.What is water resistance rowing machine?
Water rowing machines use revolving fins or paddles in an enclosed tank of water to provide the necessary resistance for a workout. The paddles essentially replace the flywheel found on other types of rowers.