The FAAC 4350085 Piston Assembly is a precision replacement component for FAAC 422 hydraulic barrier systems. Engineered to ensure smooth and reliable barrier arm operation, this piston assembly maintains optimal hydraulic pressure and consistent movement. Built with durable materials and high-quality seals, it provides long-lasting performance even in heavy-duty industrial and commercial environments. Ideal for maintenance, repairs, or restoring full functionality, the FAAC 4350085 piston assembly is fully compatible with FAAC 422 systems.