---
product_id: 376768586
title: "WATTSWater Hammer Arrestor (1/2In, Steel/Brass)"
brand: "watts"
price: "$324"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/376768586-wattswater-hammer-arrestor-1-2in-steel-brass
store_origin: NZ
region: New Zealand
---

# Compact 14.48 x 8.38 x 8.38 cm 0.5 Inch precision fit Durable steel & brass alloy WATTSWater Hammer Arrestor (1/2In, Steel/Brass)

**Brand:** watts
**Price:** $324
**Availability:** ✅ In Stock

## Summary

> 🚰 Silence your pipes, amplify your comfort!

## Quick Answers

- **What is this?** WATTSWater Hammer Arrestor (1/2In, Steel/Brass) by watts
- **How much does it cost?** $324 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/376768586-wattswater-hammer-arrestor-1-2in-steel-brass)

## Best For

- watts enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** Easy to install without adding bulk or weight to your system
- • **Precision 1/2 Inch Size:** Seamlessly integrates with standard plumbing for a flawless fit
- • **Robust Steel & Brass Build:** Engineered for long-lasting durability and corrosion resistance
- • **Trusted Watts Brand Quality:** Backed by a leader in plumbing solutions for peace of mind
- • **Silent Water Hammer Protection:** Eliminates noisy pipe shocks, preserving your home’s tranquility

## Overview

The Watts Water Hammer Arrestor (1/2In, Steel/Brass) is a compact, durable plumbing accessory designed to prevent water hammer noise and pressure surges. Crafted from a corrosion-resistant steel and brass alloy, it fits standard half-inch plumbing connections, ensuring reliable, long-term performance in residential or commercial water systems.

## Description

WATTSWater Hammer Arrestor (1/2In, Steel/Brass)

## Features

- Details: 1/2In, Steel/Brass
- Brand: Watts
- Product Type: Water Hammer Arrestor
- Durable product

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | WATTS |
| Part number | LF150A |
| Item Weight | 0.28 g |
| Product Dimensions | 14.48 x 8.38 x 8.38 cm; 0.28 g |
| Manufacturer reference | LF150A |
| Size | 0.5 Inch |
| Color | Blue |
| Material | Alloy Steel Brass |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Size:** 0.5 Inch
- **Material:** Alloy Steel Brass
- **Brand:** WATTS
- **Colour:** Blue
- **Item dimensions L x W x H:** 14.5 x 8.4 x 8.4 centimeters

## Images

![WATTSWater Hammer Arrestor (1/2In, Steel/Brass) - Image 1](https://m.media-amazon.com/images/I/518f4uNq2pL.jpg)

## Questions & Answers

**Q: Is this a long term arrestor or do they lose effectiveness over time and need to be replaced later?**
A: I was not impressed with the length of time the air stayed charged in these arrestors.  I had to go through a bit of work to recharge the air in them.  As a result, I would not recommend them to anyone to buy.

**Q: What pressure do i need to maintain?  house piping is at 65 psi.**
A: Water pressure is not effected by the arrestor so 65 PSI will be maintained in the water line after the arrestor is installed. When a shock (hammer) wave is generated, the unit will obsorb the shock wave.  Follow the instructions provided with the unit to adjust the units working pressure.  The unit is set at 30 psi by the manufacturer.  The operating range is up to 150 psi.

**Q: What adapter do I need to make this work with outside hose bib?**
A: This should be mounted in the line inside the wall going to the bib

**Q: So increasing the pressure setting on a hammer arrestor does what exactly?**
A: first you need to know what your water pressure is, then put the same amount of air pressure in the arrestor with out any water pressure on it. it you increase the air pressure  beyond your water pressure you greatly reduce its ability to work in its threshold. less dampening.

## Frequently Bought Together

- Water Hammer Arrestor, 1/2 in NPT, 150 psi
- Anderson Metals - 38106-121208 38106 Red Brass Pipe Fitting, Reducing Tee, 3/4" x 3/4" x 1/2" Female Pipe
- 2 Pieces Brass Pipe Fitting 3/4 x 3/4 Inch NPT Brass Hex Nipple Male Pipe Adapter, Straight Connector Fitting

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**Shop now:** [https://www.desertcart.nz/products/376768586-wattswater-hammer-arrestor-1-2in-steel-brass](https://www.desertcart.nz/products/376768586-wattswater-hammer-arrestor-1-2in-steel-brass)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-07*