Series NCA1 medium duty tie rod cylinders are NFPA interchangeable, have a crimped piston rod assembly, are pre-lubricated and available in 11 mounting styles. Bore sizes range from 1.5 to 4 inches.  The NCA1 expanded line of medium duty cylinders has bore sizes ranging from 5 to 8 inches.  The single rod model is available in 22 mounting styles.