---
product_id: 81757853
title: "4 x 4 in. Cast Iron or Plastic Flexible Coupling"
brand: "fernco"
price: "13043 kr"
currency: ISK
in_stock: true
reviews_count: 4
url: https://www.desertcart.is/products/81757853-4-x-4-in-cast-iron-or-plastic-flexible-coupling
store_origin: IS
region: Iceland
---

# Heavy load & shear resistance Universal multi-material connection 4x4 inch robust size 4 x 4 in. Cast Iron or Plastic Flexible Coupling

**Brand:** fernco
**Price:** 13043 kr
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with confidence — the flexible coupling that holds your system together!

## Quick Answers

- **What is this?** 4 x 4 in. Cast Iron or Plastic Flexible Coupling by fernco
- **How much does it cost?** 13043 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/81757853-4-x-4-in-cast-iron-or-plastic-flexible-coupling)

## Best For

- fernco enthusiasts

## Why This Product

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

## Key Features

- • **Compact Yet Mighty:** 4 x 4 inch size packs powerful performance in a sleek, easy-to-install design.
- • **Trusted Brand Quality:** Fernco’s proven craftsmanship guarantees durability and peace of mind for professional-grade plumbing.
- • **Engineered for Endurance:** Built to withstand heavy earth loads and shear forces, ensuring long-lasting reliability under pressure.
- • **Precision Pipe Alignment:** Enhances pipe alignment to reduce leaks and maintenance, keeping your system flawless.
- • **Seamless Multi-Material Fusion:** Effortlessly connects cast iron, plastic, copper, steel, or lead pipes for ultimate versatility.

## Overview

The Fernco 4 x 4 inch Flexible Coupling is a durable, multi-material connector designed to join cast iron, plastic, copper, steel, or lead pipes. Engineered to resist heavy earth loads and shear forces, it improves pipe alignment and ensures a secure, leak-resistant fit. Lightweight at 1.4 pounds and compact in size, this coupling is a reliable choice for professional plumbing applications.

## Description

Product Overview

## Features

- Designed for resistance to heavy earth loads and shear forces, while providing improved pipe alignment
- Connects CI, plastic, copper, steel or lead to CI, plastic, copper, steel or lead

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | 4 x 4 inches |
| Material | Copper,Lead,Plastic,Steel,Iron |
| Brand | Fernco |
| Color | Copper |
| Connector Type | Coupling |
| Thread Type | NPT |
| Item Weight | 1.4 Pounds |
| Number of Pieces | 1 |
| Manufacturer | Fernco |
| UPC | 018578016903 |
| Part Number | 1056-44RC |
| Item Weight | 1.4 pounds |
| Package Dimensions | 5 x 5 x 4.5 inches |
| Item Package Quantity | 1 |
| Measurement System | inch |
| Batteries Required? | No |

## Product Details

- **Size:** 4 x 4 inches
- **Material:** Copper,Lead,Plastic,Steel,Iron
- **Brand:** Fernco
- **Color:** Copper
- **Connector Type:** Coupling
- **Thread Type:** NPT
- **Item Weight:** 1.4 Pounds
- **Number of Pieces:** 1
- **Manufacturer:** Fernco
- **UPC:** 018578016903

## Images

![4 x 4 in. Cast Iron or Plastic Flexible Coupling - Image 1](https://m.media-amazon.com/images/I/61rfXBJBPRL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked as it should
*by R***D on May 12, 2025*

Works as it should

### ⭐⭐⭐⭐⭐ Perfect, exactly what i was looking for
*by S***. on July 1, 2024*

Fit like a glove

### ⭐⭐⭐⭐⭐ As advertised
*by E***4 on September 4, 2023*

I’d buy more stuff it’s as advertised for a decent price.

## Frequently Bought Together

- Fernco 4 x 4 in. Cast Iron or Plastic Flexible Coupling
- Fernco 4-inch XL Flexible Pipe Coupling Connector Fitting with Stainless Shield, Below Ground Plastic, Cast Iron, Steel
- Fernco XL 1056-442 Flexible Pipe Coupling 4” CI/Plastic/Steel to 4” CI/Plastic/Steel

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**Shop now:** [https://www.desertcart.is/products/81757853-4-x-4-in-cast-iron-or-plastic-flexible-coupling](https://www.desertcart.is/products/81757853-4-x-4-in-cast-iron-or-plastic-flexible-coupling)

---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-20*