---
product_id: 319775244
title: "Watts 0009801 Watts 0009801 1 1/4\" Copper Silicon Water Pressure Reducing Valve"
brand: "watts"
price: "¥208966"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/319775244-watts-0009801-watts-0009801-1-1-4-copper-silicon-water
store_origin: JP
region: Japan
---

# Watts 0009801 Watts 0009801 1 1/4" Copper Silicon Water Pressure Reducing Valve

**Brand:** watts
**Price:** ¥208966
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Watts 0009801 Watts 0009801 1 1/4" Copper Silicon Water Pressure Reducing Valve by watts
- **How much does it cost?** ¥208966 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/319775244-watts-0009801-watts-0009801-1-1-4-copper-silicon-water)

## Best For

- watts enthusiasts

## Why This Product

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

## Description

This 1 1/4" water pressure reducing valve is 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 lead free brass body construction, double union solder inlet and outlet connection, stainless steel integral strainer, thermoplastic seat module, thermal expansion bypass and a sealed spring cage for waterworks pit installations. 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). Watts 0009801 Features: Double union Adjustable 25-75 PSI Serviceable in line Integral stainless steel strainer removable for cleaning Thermoplastic seat and cage Sealed spring cage for accessible outdoor or waterworks pit installations

Review: No problems. - Fit perfectly, works great.
Review: Great purchase saved me hundreds - Fit perfect to reduce my 100psi exterior pressure that blew my water softener resin tank.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B093Q9LZYQ |
| Best Sellers Rank | #265,542 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8,192 in Pipe Fittings |
| Brand | Watts |
| Brand Name | Watts |
| Connector Type | Union |
| Customer Reviews | 4.3 out of 5 stars 28 Reviews |
| Exterior Finish | Brass |
| Inlet Connection Size | 1.25 Inches |
| Inlet Connection Type | Solder |
| Item Dimensions | 12.4 x 9.76 x 5.87 inches |
| Item Weight | 6.17 Pounds |
| Item dimensions L x W x H | 12.4 x 9.76 x 5.87 inches |
| Manufacturer | Watts |
| Manufacturer Part Number | 0009801 |
| Material | Lead Free Copper Silicon Alloy |
| Material Type | Lead Free Copper Silicon Alloy |
| Maximum Pressure | 300 Pound per Square Inch |
| Model Number | LFN45B-DU-S 1 1/4 |
| Number of Ports | 2 |
| Outlet Connection Size | 1.25 Inches |
| Outlet Connection Type | Solder |
| Size | 1 1/4 inches |
| Specification Met | ASME, ANSI, UL, CSA, NSF, MSS SP 80, MSS SP 72, IAPMO, NEMA, RoHS, EPA, WQA, ANSI B16.11, ANSI B1.20.1, UPC, FM, MSS SP 67, WaterSense, ISO 9001, MSS SP 25, OSHA, CE, ASSE |
| Thread Size | 1 1/4 inches |
| Thread Type | Union |
| UPC | 098268428612 |
| Unit Count | 1.0 Count |
| Valve Type | Water Pressure Reducing Valve |

## Images

![Watts 0009801 Watts 0009801 1 1/4" Copper Silicon Water Pressure Reducing Valve - Image 1](https://m.media-amazon.com/images/I/71GTKpzQm8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ No problems.
*by M***K on February 13, 2026*

Fit perfectly, works great.

### ⭐⭐⭐⭐⭐ Great purchase saved me hundreds
*by J***P on February 4, 2026*

Fit perfect to reduce my 100psi exterior pressure that blew my water softener resin tank.

### ⭐⭐⭐⭐⭐ Parts defect recovery
*by S***E on November 30, 2025*

size is ok function well with 60psi municipal,but Internal valve leak defective. I would like to have another try after watts exchanges a good one to me. -----12／07／25 update---- After I bought another one. No defect . No leak and all function well. I corrected the rating to 5.

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**Shop now:** [https://www.desertcart.jp/products/319775244-watts-0009801-watts-0009801-1-1-4-copper-silicon-water](https://www.desertcart.jp/products/319775244-watts-0009801-watts-0009801-1-1-4-copper-silicon-water)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-20*