---
product_id: 157081023
title: "7134770 Flue Adapter CPVC 3\" for Vitocrossal 300 CU3A 26/35/45/57 Series Boilers"
brand: "viessmann"
price: "€ 72.98"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/157081023-7134770-flue-adapter-cpvc-3-for-vitocrossal-300-cu3a-26
store_origin: IE
region: Ireland
---

# For Residential & Light Commercial Compact Design 3" Flue Adapter 7134770 Flue Adapter CPVC 3" for Vitocrossal 300 CU3A 26/35/45/57 Series Boilers

**Brand:** viessmann
**Price:** € 72.98
**Availability:** ✅ In Stock

## Summary

> 🔍 Upgrade Your Boiler Game!

## Quick Answers

- **What is this?** 7134770 Flue Adapter CPVC 3" for Vitocrossal 300 CU3A 26/35/45/57 Series Boilers by viessmann
- **How much does it cost?** € 72.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/157081023-7134770-flue-adapter-cpvc-3-for-vitocrossal-300-cu3a-26)

## Best For

- viessmann enthusiasts

## Why This Product

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

## Key Features

- • **Precision Fit:** Engineered for Vitocrossal 300 CU3A series boilers.
- • **Quality Assurance:** Check compatibility with your boiler's serial number.
- • **Compact Dimensions:** Perfectly sized at 4.02 x 4.02 x 4.02 inches.
- • **Lightweight Design:** Weighs only 8.4 ounces for easy handling.
- • **Professional Installation Required:** Ensure optimal performance with licensed contractor installation.

## Overview

The Viessmann 7134770 Flue Adapter CPVC 3" is a high-quality replacement part designed specifically for the Vitocrossal 300 CU3A series of gas-fired boilers, ensuring a perfect fit and optimal performance. Weighing just 8.4 ounces and featuring compact dimensions, this adapter is easy to handle and install, provided by a licensed professional. Always verify compatibility with your boiler's serial number before ordering.

## Description

Viessmann7134770 Flue Adapter CPVC 3" for Vitocrossal 300 CU3A 26/35/45/57 Series Boilers

## Features

- Replacement 3" Flue Adapter CPVC for Vitocrossal 300 CU3A 26/35/45/57 Residential and Light Commercial Gas-Fired Boilers
- Vitocrossal 300 CU3A boilers are compact, floor-standing gas condensing boilers from 19-199 MBH
- Any adjustments, installations, service or maintenance must be completed by a licensed professional heating contractor who is qualified to work with hot water boilers
- Check with manufacturer before ordering replacement parts to ensure a proper fit
- Give the manufacturer the 16-digit boiler serial number or the 12-digit ASME/NB serial number

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Viessmann |
| Brand | Viessmann |
| Model | 7134770 |
| Item Weight | 8.4 ounces |
| Package Dimensions | 4.02 x 4.02 x 4.02 inches |
| Item model number | 7134770 |
| Manufacturer Part Number | 7134770 |

## Images

![7134770 Flue Adapter CPVC 3" for Vitocrossal 300 CU3A 26/35/45/57 Series Boilers - Image 1](https://m.media-amazon.com/images/I/71zfwWx4cUL.jpg)

## Frequently Bought Together

- Viessmann 7134770 Flue Adapter CPVC 3" for Vitocrossal 300 CU3A 26/35/45/57 Series Boilers
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---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-03*