---
product_id: 54101670
title: "Caleffi 525040 1/2\" Mechanical Shock Arrestor Prevents Plumbing Water Hammer"
brand: "caleffi"
price: "€ 85.86"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/54101670-caleffi-525040-1-2-mechanical-shock-arrestor-prevents-plumbing-water
store_origin: NL
region: Netherlands
---

# Polished Finish 1/2" Thread Size Max Pressure: 10 bar Caleffi 525040 1/2" Mechanical Shock Arrestor Prevents Plumbing Water Hammer

**Brand:** caleffi
**Price:** € 85.86
**Availability:** ✅ In Stock

## Summary

> 💦 Silence the Shock, Elevate Your Home!

## Quick Answers

- **What is this?** Caleffi 525040 1/2" Mechanical Shock Arrestor Prevents Plumbing Water Hammer by caleffi
- **How much does it cost?** € 85.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/54101670-caleffi-525040-1-2-mechanical-shock-arrestor-prevents-plumbing-water)

## Best For

- caleffi enthusiasts

## Why This Product

- Trusted caleffi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **PTFE Sealing:** Ensures a leak-proof experience every time.
- • **Sleek Design:** Polished finish adds a touch of elegance to your plumbing.
- • **Easy Installation:** Seamlessly integrates into your existing plumbing.
- • **Durable Construction:** Built with high-quality messing for longevity.
- • **Eliminate Water Hammer:** Say goodbye to disruptive plumbing noises!

## Overview

The Caleffi 525040 1/2" Mechanical Shock Arrestor is designed to prevent plumbing water hammer, featuring a robust chrome-plated brass construction, a maximum operating pressure of 10 bar, and a PTFE sealing thread for optimal performance. Its polished finish not only enhances durability but also adds a modern touch to your plumbing system.

## Description

Caleffi 525040 1/2" Mechanical Shock Arrestor Prevents Plumbing Water Hammer

## Features

- Water shock musher
- 1/2 inch chrome-plated br case
- Max. Operating pressure: 10 bar
- PTFE sealing thread

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | CALEFFI |
| Part Number | 525040 |
| Item model number | K11489 |
| Finish | Polished |
| Material | Messing |
| Item Package Quantity | 1 |
| Number of handles | 1 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 490 g |

## Product Details

- **Brand:** Caleffi
- **Material:** Messing
- **Finish type:** Polished
- **Thread size:** 1/2"
- **Manufacturer:** CALEFFI

## Images

![Caleffi 525040 1/2" Mechanical Shock Arrestor Prevents Plumbing Water Hammer - Image 1](https://m.media-amazon.com/images/I/61NOvHOsR9L.jpg)

## Questions & Answers

**Q: I've had one of these for 2-3 years for hammering from my washing machine. The hammering has started again. Can these start to fail after a while?**
A: Larger types have balloons inside which expand this relieves the back pressure(water hammer), this type is different it could have a spring and valve arrangement because of its small size, but does the same job. Its possible the internals blocked/broken.

**Q: can this be fitted to a water tank fitted with a ball valve**
A: Sorry no idea we have its fitted to the house stop tap and still had to turn the waters pressure down . Its has helped it  . We had water hammer really bad.

## Frequently Bought Together

- Caleffi 525040 1/2" Mechanical Shock Arrestor Prevents Plumbing Water Hammer
- Shelly H&T Temperature and Humidity Status, Configuration with App Shelly, White

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**Shop now:** [https://www.desertcart.nl/products/54101670-caleffi-525040-1-2-mechanical-shock-arrestor-prevents-plumbing-water](https://www.desertcart.nl/products/54101670-caleffi-525040-1-2-mechanical-shock-arrestor-prevents-plumbing-water)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*