Tired of that loud banging noise in your pipes every time you turn off a tap? That's water hammer, and it's not just annoying – it can actually damage your plumbing over time. This little 0.16 litre shock arrestor is the fix! It's basically a small expansion vessel with a pre-charged air chamber inside. When a pressure surge happens (like when a valve shuts quickly), this unit absorbs the shock instead of letting it slam through your pipes. It comes with a 15mm brass tee fitting, so it's super easy to install inline on your existing water pipes. You can mount it vertically or horizontally. Made from durable stainless steel, it's a pro-grade part that'll help protect your taps, valves, washing machine, and dishwasher from stress. A simple, effective solution for a noisy plumbing system!