Arsen Metal Expansion Joints with Control Rods are engineered to limit excessive movement and prevent over-extension or collapse of the bellows under high pressure spikes. Built from premium-grade steel and stainless steel components, these robust restraining assemblies guarantee maximum system safety, structural integrity, and structural vibration dampening. Available in a wide variety of rod configurations and sizes, they seamlessly integrate into existing systems for a fast, secure, and worry-free field installation.