---
product_id: 151144716
title: "Zurn Wilkins 34-350 3/4\" 350 Double Check Backflow Preventer"
brand: "wilkins"
price: "59964 kr"
currency: ISK
in_stock: true
category: "Wilkins"
url: https://www.desertcart.is/products/151144716-zurn-wilkins-34-350-3-4-350-double-check-backflow
store_origin: IS
region: Iceland
---

# Water-saving design EZSwap removable vessel Saves 15 mins per install Zurn Wilkins 34-350 3/4" 350 Double Check Backflow Preventer

**Brand:** wilkins
**Price:** 59964 kr
**Availability:** ✅ In Stock

## Summary

> 💧 Protect your water, save your time, and upgrade your flow game!

## Quick Answers

- **What is this?** Zurn Wilkins 34-350 3/4" 350 Double Check Backflow Preventer by wilkins
- **How much does it cost?** 59964 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/151144716-zurn-wilkins-34-350-3-4-350-double-check-backflow)

## Best For

- wilkins enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Stainless steel and UV-resistant reinforced nylon ensure corrosion resistance in harsh outdoor conditions.
- • **Certified Reliability:** Meets ASSE 1015, AWWA C510, CSA B64.5, and IAPMO standards for trusted performance.
- • **Cut Costs Dramatically:** Reduce labor and repair kit expenses by 75%+ over the backflow preventer’s lifecycle.
- • **EZSwap Pressure Vessel:** Removable and serviceable off-line for hassle-free repairs and winterization.
- • **Speedy Install & Maintenance:** Flush Tool cuts line flushing time by 15 minutes, accelerating your project timeline.

## Overview

The Zurn Wilkins 34-350 3/4" Double Check Backflow Preventer is a top-tier solution for low health hazard, non-potable water systems. Featuring a patented EZSwap removable pressure vessel and corrosion-resistant stainless steel and UV-stabilized nylon construction, it delivers quick installation, easy maintenance, and significant water savings. Certified by ASSE, AWWA, CSA, and IAPMO, it’s the trusted choice for irrigation pros seeking durability and cost efficiency.

## Description

The 3/4 in. 350 Double Check Valve Assembly is used in low health hazard, non-potable water applications for protection against both backsiphonage and backpressure of polluted water. A favorite for irrigation contractors, the patented and innovative EZSwap removable pressure vessel allows for simple, cost-effective maintenance and repairs, straightforward line flushing, quick winterization, and water savings. Its stainless steel shut-off valve handles, hardware, and struts are corrosion-resistant and the durable UV resistant reinforced nylon EZSwap Pressure Vessel resists corrosion and mineral build-up to better withstand harsh outdoor conditions.

## Features

- Flush Tool (FLUSH) provides easy line flushing, saving up to 15 minutes per installation
- EZSwap removable pressure vessel reduces repair time and costs, and is serviceable off-line
- Design ensures water savings
- Stainless steel and durable, UV-resistant reinforced nylon construction offers corrosion-resistance and quick winterization
- Reduced labor and repair kit costs save 75% or more during backflow lifecycle; ASSE Listed 1015; IAPMO Listed; CSA Certified B64.5; AWWA Compliant C510;

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004H2NSB0 |
| Best Sellers Rank | #75,729 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #125 in Check Valves |
| Brand | Wilkins |
| Brand Name | Wilkins |
| Customer Reviews | 4.5 out of 5 stars 127 Reviews |
| Exterior Finish | Stainless Steel |
| Global Trade Identification Number | 00612052081380 |
| Included Components | Double Check Valve Assembly |
| Inlet Connection Size | 0.75 inches |
| Inlet Connection Type | F |
| Item Dimensions | 12 x 4.6 x 5.6 inches |
| Item Type Name | Double Check Backflow Preventer |
| Item dimensions L x W x H | 12 x 4.6 x 5.6 inches |
| Manufacturer | Zurn Industries |
| Manufacturer Part Number | 34-350 |
| Manufacturer Warranty Description | 1 Year manufacturer |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Model Number | 34-350 |
| Number of Items | 1 |
| Number of Pieces | 2 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.75 inches |
| Outlet Connection Type | F |
| Size | 0.75 Inch |
| Specification Met | ASSE Listed 1015, AWWA Compliant C510, CSA Certified B64.5, IAPMO |
| Thread Size | 0.75 inches NPT |
| Thread Type | NPT |
| UPC | 612052081380 |
| Unit Count | 1 Count |
| Valve Type | Double Check |

## Product Details

- **Brand:** Wilkins
- **Exterior Finish:** Stainless Steel
- **Inlet Connection Size:** 0.75 inches
- **Inlet Connection Type:** F
- **Item dimensions L x W x H:** 12 x 4.6 x 5.6 inches
- **Material:** Stainless Steel
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.75 inches
- **Outlet Connection Type:** F
- **Specification Met:** ASSE Listed 1015, AWWA Compliant C510, CSA Certified B64.5, IAPMO

## Images

![Zurn Wilkins 34-350 3/4" 350 Double Check Backflow Preventer - Image 1](https://m.media-amazon.com/images/I/71OhH+SOH7L.jpg)
![Zurn Wilkins 34-350 3/4" 350 Double Check Backflow Preventer - Image 2](https://m.media-amazon.com/images/I/71nwH7oFWfL.jpg)
![Zurn Wilkins 34-350 3/4" 350 Double Check Backflow Preventer - Image 3](https://m.media-amazon.com/images/I/71EU-KFiHjL.jpg)
![Zurn Wilkins 34-350 3/4" 350 Double Check Backflow Preventer - Image 4](https://m.media-amazon.com/images/I/71BtraAci3L.jpg)

## Available Options

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

## Questions & Answers

**Q: Does this product contain lead?**
A: This is not the Lead Free version. That would be the 34-350XL.
Thank you

**Q: What size is the thread on both ends?  will it connect to 1" threaded pvc?**
A: It is 3/4 thread we buy 3/4 to 1 adapters.

**Q: what happens if I switch up the springs inside the unit? ex. #1 spring in the #2 cv and vise versa.**
A: As long as it is a Certified rebuild kit yes if not it will not hold

**Q: Does this come with the Blow Out Fitting**
A: No, but you can have it as a accessory: Winterizing Blow out/Flush fitting: (RK34-350BOF,
RK1-350BOF or RK114-350-375BOF)

## Frequently Bought Together

- Zurn Wilkins 34-350 3/4" 350 Double Check Backflow Preventer
- Zurn Wilkins 1-SXL 1" SXL Cast Bronze Wye Type Strainer
- Zurn Wilkins 1-350 1" 350 Double Check Backflow Preventer

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-11-11*