---
product_id: 9285975
title: "1056-64, Flexible Coupling, For Pipe Size 6\" x 4\""
brand: "fernco"
price: "€ 41.98"
currency: EUR
in_stock: true
reviews_count: 11
category: "Fernco"
url: https://www.desertcart.hr/products/9285975-1056-64-flexible-coupling-for-pipe-size-6-x-4
store_origin: HR
region: Croatia
---

# Fits 6" x 4" pipes seamlessly Corrosion-proof stainless clamps Chemical & sewer gas resistant 1056-64, Flexible Coupling, For Pipe Size 6" x 4"

**Brand:** fernco
**Price:** € 41.98
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with confidence—flexibility meets durability!

## Quick Answers

- **What is this?** 1056-64, Flexible Coupling, For Pipe Size 6" x 4" by fernco
- **How much does it cost?** € 41.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/9285975-1056-64-flexible-coupling-for-pipe-size-6-x-4)

## 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

- • **Universal Flex Fit:** Connects PVC, Cast Iron, Copper & more with ease
- • **Trusted & Certified:** ASTM, CSA, UPC approved for professional-grade reliability
- • **Precision Engineered:** Fits pipe ODs 4.10"-4.60" & 6.25"-6.85" perfectly
- • **Durability That Lasts:** Elastomeric PVC ensures leak-proof, long-life performance
- • **Mess-Free Installation:** No primers or glues—just clamp and go

## Overview

The Fernco 1056-64 Flexible Coupling is a high-quality, elastomeric PVC pipe connector designed to join 6" and 4" pipes of various materials including PVC, cast iron, and steel. Featuring corrosion-resistant stainless steel clamps and a flexible fit for pipe ODs between 4.10"-4.60" and 6.25"-6.85", it offers a leak-proof, chemical-resistant seal without the need for messy adhesives. Certified to ASTM, CSA, and UPC standards, this coupling delivers professional-grade performance and easy installation for plumbing, drainage, and sewer systems.

## Description

Product Description Fernco 1056-64 6" x 4" Flexible Pipe Coupling (Connects Cast Iron, PVC, Steel or Lead) From the Manufacturer Established in 1964, Fernco is a global leader in manufacturing high-quality flexible pipe couplings, drainage, and plumbing systems. Renowned for exceptional performance and reliability, Fernco products are trusted by homeowners and professionals alike. With a commitment to innovation and dependability, Fernco has earned a strong reputation for delivering superior solutions. As a proud USA manufacturer, Fernco is dedicated to maintaining the highest standards of production and engineering.

Review: Work well, fit 4 inch pvc, great value - These 4”x6” runner boots work great. I am using them at the top inlets of a water harvesting system that utilizes 4 inch -pvc pipe schedule 40. The 4 inch end of the boot slips onto the pvc with no problem. The boot comes with two stainless steel clamps that fit each end of it. I used the 6 inch end to secure screen to filter out debris and keep it from entering the system. The boots are durable, the size is accurate, and they are a good value for the money. I would recommend them.
Review: Dust collector adaptor - Used this to drop my Rockler dust right collector from the twin branch to a single pipe for the cyclone. The 6" section was far too big but the strapping pulled it down tight and the seal is great. For my application this worked perfectly.

## Features

- UNMATCHED QUALITY & PERFORMANCE: Built to last the life of the plumbing system, Fernco couplings are made from elastomeric polyvinyl chloride for a strong, leak-proof fitting that’s resistant to chemicals and sewer gases.
- FLEXIBLE FIT: To choose the right coupling, measure the outside diameter (OD) of your pipe. This coupling has an internal diameter (ID) of 4.46” and fits pipe ODs between 4.10" - 4.60" on one end with an internal diameter (ID) of 6.61" that fits pipe Ods between 6.25" - 6.85" on the other end.
- CONNECT VARIOUS PIPE TYPES: The Fernco P1056-64 coupling connects Plastic (PVC, ABS, CPVC, Smooth Wall HDPE), Cast Iron, Copper, Steel or Lead Pipe for a watertight joint. For sewer and drain, waste and vent piping.
- NO-MESS INSTALLATION: Fernco couplings are easy to install without the hassle of messy primers, glues and their unwanted odors.
- SPECS & CODES: Conforms to ASTM D 5926, C 1173 CSA B602 and UPC Approved. 300 stainless steel clamps are corrosion-resistant, rustproof and make installing quick and easy with just a screwdriver, nut driver or torque wrench.
- Stock coupling
- Use to connect any two pipes
- 6.61-Inch x 4.46-Inch x 5.75-Inch

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BQM0JC |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #67,714 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2,033 in Pipe Fittings |
| Brand | Fernco |
| Color | Black |
| Connector Type | Coupling |
| Customer Reviews | 4.6 4.6 out of 5 stars (148) |
| Date First Available | June 13, 2025 |
| Exterior Finish | Black |
| Global Trade Identification Number | 00018578000131, 00018578015586 |
| Included Components | P1056-64 Flexible PVC Pipe Coupling |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 9.6 ounces |
| Item dimensions L x W x H | 4.8 x 6.81 x 5.56 inches |
| Item model number | 1056-64 |
| Manufacturer | Fernco Inc. |
| Material | Polyvinyl Chloride, Stainless Steel |
| Measurement System | inch |
| Number of Handles | 1 |
| Number of Pieces | 1 |
| Part Number | P1056-64 |
| Product Dimensions | 4.8 x 6.81 x 5.56 inches |
| Size | 6 Inch |
| Thread Size | 6.85 inches |
| UPC | 018578015586 018578000131 |
| Voltage | 120 Volts |
| Warranty Description | Warranty |
| Water Consumption | 1 Gallons |

## Product Details

- **Brand:** Fernco
- **Color:** Black
- **Connector Type:** Coupling
- **Exterior Finish:** Black
- **Item Weight:** 0.6 Pounds
- **Item dimensions L x W x H:** 4.8 x 6.81 x 5.56 inches
- **Material:** Polyvinyl Chloride, Stainless Steel
- **Number of Pieces:** 1
- **Size:** 6 Inch
- **Thread Size:** 6.85 inches

## Images

![1056-64, Flexible Coupling, For Pipe Size 6" x 4" - Image 1](https://m.media-amazon.com/images/I/71tRnYFGtLL.jpg)

## Questions & Answers

**Q: will this work on connecting a 6" cast iron to a 4" clay sewer line??**
A: No, the 4" side on the P1056-64 is a nominal 4.46" inside diameter according to Fernco so it too small for 4" clay. The Fernco 1002-46 is designed for 6" PVC/cast iron to 4" clay and according to Fernco.com has a 6.39" by 5.18" inside diameter. Haven't worked with clay pipe but according to the sizing information from the Fernco site, any adapter with a clay connection requires that side of the adapter to be sized just for clay. Hope this helps.

**Q: Will this work on connecting a 6" dsw sch 40 pvc pipe to a sdr 35 4" pipe?**
A: It will work but because sdr 35 is thinner wall than sch 40 be careful not to over tighten the connection to the 35.

**Q: What are the inner diameter dimensions?**
A: Its difficult to measure as it is flexible and not perfectly round when not installed on a pipe.  As close as I can get the inside diameters are 4 1/2 and 6 1/2 inches.  Fits 4 inch schedule 40 PVC and the top fitting on a IBC container which is what I used it for.

**Q: 12"coupling reduce to 6"**
A: No. Mine fit loosely on an 8" to 6".

## Customer Reviews

### ⭐⭐⭐⭐⭐ Work well, fit 4 inch pvc, great value
*by M***D on May 7, 2025*

These 4”x6” runner boots work great. I am using them at the top inlets of a water harvesting system that utilizes 4 inch -pvc pipe schedule 40. The 4 inch end of the boot slips onto the pvc with no problem. The boot comes with two stainless steel clamps that fit each end of it. I used the 6 inch end to secure screen to filter out debris and keep it from entering the system. The boots are durable, the size is accurate, and they are a good value for the money. I would recommend them.

### ⭐⭐⭐⭐⭐ Dust collector adaptor
*by M***L on November 7, 2024*

Used this to drop my Rockler dust right collector from the twin branch to a single pipe for the cyclone. The 6" section was far too big but the strapping pulled it down tight and the seal is great. For my application this worked perfectly.

### ⭐⭐⭐⭐⭐ Boot dimension completes repair
*by E***E on September 26, 2024*

Attempting to repair a damaged sewer pipe I bought a 6”x4” reducer from a plumbing store and I ordered 1 thru Amazon. The sewer pipe diameter was larger than the 6” side of the boot. After several attempts of trying to install the boot from the plumbing store I was in a dilemma until the boot I ordered from Amazon was delivered. The dimensions are slightly larger in size and that made the difference installing the boot and completing the repair. I would definitely order this product over any product from a plumbing store.

## Frequently Bought Together

- Fernco 1056-64 6" x 4" Flexible Pipe Coupling (Connects Cast Iron, PVC, Steel or Lead)
- Fernco 1056-66 6-in. Flexible PVC Pipe Coupling for Cast Iron/Plastic/Steel Plumbing Connections in Black
- Fernco 1056-86 Flexible Pipe Coupling 8” CI/Plastic/Steel to 6” CI/Plastic/Steel

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-01-24*