---
product_id: 346879771
title: "Watts LF25AUB-Z3 Series 1\" Lead-Free Cast Copper Silicon Alloy Water Pressure Reducing Valve, NPT Female Union x NPT Female Outlet, Polymer Seat, Adjustable Pressure 25 to 75 psi, Maximum 300 psi"
brand: "watts"
price: "1645.32 DT"
currency: TND
in_stock: true
category: "Watts"
url: https://www.desertcart.tn/products/346879771-watts-lf25aub-z3-series-1-lead-free-cast-copper-silicon
store_origin: TN
region: Tunisia
---

# Durable cast copper silicon alloy build Adjustable 25-75 psi pressure range Operates from 33°F to 180°F Watts LF25AUB-Z3 Series 1" Lead-Free Cast Copper Silicon Alloy Water Pressure Reducing Valve, NPT Female Union x NPT Female Outlet, Polymer Seat, Adjustable Pressure 25 to 75 psi, Maximum 300 psi

**Brand:** watts
**Price:** 1645.32 DT
**Availability:** ✅ In Stock

## Summary

> 💧 Master your water pressure, protect your flow — because every drop counts!

## Quick Answers

- **What is this?** Watts LF25AUB-Z3 Series 1" Lead-Free Cast Copper Silicon Alloy Water Pressure Reducing Valve, NPT Female Union x NPT Female Outlet, Polymer Seat, Adjustable Pressure 25 to 75 psi, Maximum 300 psi by watts
- **How much does it cost?** 1645.32 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/346879771-watts-lf25aub-z3-series-1-lead-free-cast-copper-silicon)

## 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

- • **Thermal Expansion Bypass:** Smart bypass feature prevents pressure build-up from thermal expansion, safeguarding your plumbing.
- • **Lead-Free Safety Assurance:** Crafted from lead-free cast copper silicon alloy, ensuring clean, safe water for your home or business.
- • **Precision Pressure Control:** Customize water pressure effortlessly between 25 to 75 psi for optimal system protection and efficiency.
- • **Trusted Legacy & Performance:** Backed by Watts’ 145+ years of innovation, delivering reliable water pressure regulation with a 4.6-star rating.
- • **Easy Installation & Maintenance:** NPT female union connections and replaceable seat module make setup and upkeep hassle-free.

## Overview

The Watts LF25AUB-Z3 is a 1-inch lead-free water pressure reducing valve designed for commercial, industrial, and residential use. It features an adjustable pressure range of 25 to 75 psi, a durable cast copper silicon alloy body, and a thermal expansion bypass to protect plumbing systems. With easy NPT female union connections and a temperature operating range of 33°F to 180°F, it ensures reliable, safe water pressure control backed by over 145 years of Watts Water Technologies expertise.

## Description

Product Description This 1 inch lead free brass water pressure reducing valve is the standard model, designed to reduce incoming water pressure to protect plumbing systems and reduce water consumption for commercial, industrial and residential applications. The easy maintenance assembly consists of a replaceable seat module, NPT threaded female union inlet by NPT female outlet and a bypass feature to control thermal expansion pressure. The temperature range is 33 to 180 degrees F (0.5 to 82 degrees C). Suitable for up to 300 psi (20.7 bar), the pressure range can be adjusted from 25 to 75 psi (172 to 517 kPa) with the standard setting at 50 psi (345 kPa). From the Manufacturer For more than 145 years, Watts has provided people around the world with products, systems and solutions that help convey, conserve, control and safely use water.

## Features

- LEAD-FREE WATER PRESSURE REDUCTION: The Watts 1" Lead-Free Water Pressure Reducing Valve reduces incoming water pressure to protect plumbing systems and reduce water consumption in commercial, industrial, and residential applications. This assembly includes a removable integral stainless steel strainer, replaceable seat module, thermal expansion bypass, high-temperature diaphragm, and a sealed spring case with stainless steel cage screws for waterwork pit installations.
- EASY INSTALLATION AND MAINTENANCE: With versatile end connection options such as PEX, CPVC, and Quick-Connect, this lead-free water pressure reducing valve is designed for straightforward installation with easy handling and in-line serviceability, featuring an NPT female union inlet by NPT female outlet that simplifies the installation process.
- THERMAL EXPANSION PROTECTION: The valve includes a bypass feature that effectively controls thermal expansion pressure, permitting the flow of water back through the valve into the main when pressures - due to thermal expansion on the outlet side of the valve - exceed the pressure in the main supply. It has an operating temperature range of 33 degreesF (0.5 degrees C) to 180 degreesF (82 degrees C).
- VERSATILE PRESSURE ADJUSTMENT: This valve is suitable for pressures up to 400 psi (27.6 bar) and allows for an adjustable pressure range between 25 to 75 psi (172 to 517 kPa), with a standard setting at 50 psi (345 kPa). This allows for user customization in order to fit to fit your specific needs.
- EVERY DROP COUNTS: Water. It's in our name and close to our hearts. Since 1874, Watts Water Technologies has been delivering innovative technologies that make the world's most precious resource safe and accessible. Everything we design is made to keep the Earth's most precious resource safer, cleaner, and more useful for our customers. Our family of brands offers one of the most varied product lines in the world, with world-class, water-related solutions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00VWHDFJ8 |
| Best Sellers Rank | #13,430 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #18 in Industrial Pressure Regulators |
| Brand | Watts |
| Brand Name | Watts |
| Connector Type | Threaded |
| Customer Reviews | 4.6 out of 5 stars 1,037 Reviews |
| Exterior Finish | Stainless Steel |
| Global Trade Identification Number | 00098268330427 |
| Inlet Connection Size | 1 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Item Dimensions | 3.9 x 7.4 x 8.5 inches |
| Item Type Name | NPT Female Union x NPT Female |
| Item Weight | 5.1 Pounds |
| Item dimensions L x W x H | 3.9 x 7.4 x 8.5 inches |
| Manufacturer | Watts Water Technologies |
| Manufacturer Part Number | 9309 |
| Material | Cast Copper Silicon Alloy |
| Material Type | Cast Copper Silicon Alloy |
| Maximum Pressure | 300 Pound per Square Inch |
| Model Number | LF25AUB-Z3 |
| Number of Ports | 2 |
| Outlet Connection Size | 1 Inches |
| Outlet Connection Type | FNPT |
| Size | 1 Inch |
| Specification Met | SDWA or RLDWA |
| Thread Size | 1 Inch |
| Thread Type | NPT |
| UPC | 098268330427 |
| Unit Count | 1.0 Count |
| Valve Type | Pressure Reducing Valve |

## Product Details

- **Brand:** Watts
- **Exterior Finish:** Stainless Steel
- **Inlet Connection Size:** 1 Inches
- **Inlet Connection Type:** National Pipe Tapered
- **Item dimensions L x W x H:** 3.9 x 7.4 x 8.5 inches
- **Material:** Cast Copper Silicon Alloy
- **Maximum Operating Pressure:** 300 Pound per Square Inch
- **Number of Ports:** 2
- **Outlet Connection Size:** 1 Inches
- **Outlet Connection Type:** FNPT

## Images

![Watts LF25AUB-Z3 Series 1" Lead-Free Cast Copper Silicon Alloy Water Pressure Reducing Valve, NPT Female Union x NPT Female Outlet, Polymer Seat, Adjustable Pressure 25 to 75 psi, Maximum 300 psi - Image 1](https://m.media-amazon.com/images/I/71lII5XzxML.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Frequently Bought Together

- Watts LF25AUB-Z3 Series 1" Lead-Free Cast Copper Silicon Alloy Water Pressure Reducing Valve, NPT Female Union x NPT Female Outlet, Polymer Seat, Adjustable Pressure 25 to 75 psi, Maximum 300 psi
- Watts LF25AUB-Z3 Water Pressure Reducing Valve NPT Female Union x NPT Female, Polymer Seat, 3/4 Inch

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-08*