This Sioux Chief 660-TX2 is an inline water hammer arrestor that comes with a connection size of 1/2". It is of durable copper construction that lasts for years to come. This inline water hammer arrestor features a PEX crimp connection type and has a maximum working pressure of 350 PSI. It functions well in absorbing shock when the water that flows in piping systems suddenly stops. Here at PlumbersStock, we always make it our main priority to offer you top-quality fittings for your plumbing needs. And since we value your time, you may now get this inline water hammer arrestor for a reasonable price!