---
product_id: 50008855
title: "Watts SD-3 Series 3/8\" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Female NPT Inlet x SAE Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install"
brand: "watts"
price: "₪1497"
currency: ILS
in_stock: true
reviews_count: 6
url: https://www.desertcart.co.il/products/50008855-watts-sd-3-series-3-8-stainless-steel-dual-check
store_origin: IL
region: Israel
---

# Prevents backflow Versatile install Corrosion-resistant Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Female NPT Inlet x SAE Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install

**Brand:** watts
**Price:** ₪1497
**Availability:** ✅ In Stock

## Summary

> 💡 Elevate Your Beverage Game with Unmatched Safety!

## Quick Answers

- **What is this?** Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Female NPT Inlet x SAE Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install by watts
- **How much does it cost?** ₪1497 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/50008855-watts-sd-3-series-3-8-stainless-steel-dual-check)

## 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

- • **🛠️ Durable Design:** Crafted from stainless steel with robust internal components.
- • **👀 Visual Safety Check:** Atmospheric port provides instant failure indication.
- • **🚀 Ultimate Protection:** Safeguards your water supply from contamination.
- • **🔄 Flexible Installation:** Easily installs in both vertical and horizontal orientations.
- • **🌡️ High-Performance Specs:** Handles up to 150psi and 130°F for reliable operation.

## Overview

The WattsSD-3 Series Dual Check Valve Backflow Preventer is engineered to protect your potable water supply from contamination due to backpressure. Ideal for beverage machines, it features a corrosion-resistant stainless-steel body, versatile installation options, and a visual failure indicator, ensuring both safety and reliability in your beverage dispensing operations.

## Description

Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Female NPT Inlet x SAE Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install

## Features

- Prevents a backflow of contaminated water (i.e. carbon dioxide gas and carbonated water) from entering your potable water supply due to backpressure
- Ideal for use on post-mix carbonated beverage equipment or tea or coffee dispensers, kit consists of first and second check assemblies complete
- Designed for either continuous or intermittent pressure applications to be installed horizontally or vertically
- Features a corrosion-resistant stainless-steel body; internal rubber components; a wye pattern strainer; female NPT inlet with SAE male flare outlet connections; and an atmospheric port that provides visual indication of failure
- Size is 2.5 x 2.5 x 5.06 inches, Maximum Pressure 150psi (10.3 bar), and Maximum Temperature 130°F (54°C)

## Images

![Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Female NPT Inlet x SAE Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install - Image 1](https://m.media-amazon.com/images/I/71Er3I47iNL.jpg)
![Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Female NPT Inlet x SAE Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install - Image 2](https://m.media-amazon.com/images/I/51z4vALpwwL.jpg)
![Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Female NPT Inlet x SAE Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install - Image 3](https://m.media-amazon.com/images/I/615yROw2bsL.jpg)
![Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Female NPT Inlet x SAE Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install - Image 4](https://m.media-amazon.com/images/I/51ZpPVrEBJL.jpg)
![Watts SD-3 Series 3/8" Stainless Steel Dual Check Valve Backflow Preventer for Beverage Machine, Female NPT Inlet x SAE Male NPT Outlet, Atmospheric Vent, Wye Strainer, Vertical or Horizontal Install - Image 5](https://m.media-amazon.com/images/I/71CFCdb0kuL.jpg)

## Customer Reviews

### ⭐ 1.0 out of 5 stars







  
  
    Leaks
  

*by M***C on Reviewed in the United States on April 21, 2023*

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     Just got this, just installed it and it's leaking right through the casing. Note, this is unrelated to the vent, it's leaking past the joint where the top and side meet.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Perfect fit
  

*by A***L on Reviewed in the United States on November 1, 2019*

Easy to install and a perfect fit.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    It works
  

*by R***N on Reviewed in the United States on September 30, 2019*

Soda machine Backflow device

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---

*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-02-05*