---
product_id: 145109933
title: "Supply Giant 6I54 Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 3.5\" x 1.9\" Inner Diameter for 3\" x 1.5\" Nominal Pipe, Black"
brand: "supplygiant"
price: "€ 21.90"
currency: EUR
in_stock: true
reviews_count: 8
category: "Supplygiant"
url: https://www.desertcart.ie/products/145109933-supply-giant-6i54-flexible-pvc-reducing-coupling-with-stainless-steel
store_origin: IE
region: Ireland
---

# ASTM C1173 & UPC certified for underground use 3.5" x 1.9" flexible PVC coupling Stainless steel clamps for secure fit Supply Giant 6I54 Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 3.5" x 1.9" Inner Diameter for 3" x 1.5" Nominal Pipe, Black

**Brand:** supplygiant
**Price:** € 21.90
**Availability:** ✅ In Stock

## Summary

> 🔗 Lock in leak-proof confidence with Supply Giant’s flexible coupling!

## Quick Answers

- **What is this?** Supply Giant 6I54 Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 3.5" x 1.9" Inner Diameter for 3" x 1.5" Nominal Pipe, Black by supplygiant
- **How much does it cost?** € 21.90 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/145109933-supply-giant-6i54-flexible-pvc-reducing-coupling-with-stainless-steel)

## Best For

- supplygiant enthusiasts

## Why This Product

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

## Key Features

- • **Certified Reliability:** Meets ASTM C1173 and CSA B602 standards, trusted by professionals for both indoor and outdoor sewer systems.
- • **Effortless Installation:** Lightweight, resilient design makes repairs and upgrades quick—because your time is valuable.
- • **Universal Compatibility:** Seamlessly connects cast iron, plastic, copper, lead & steel pipes for versatile plumbing solutions.
- • **Leak-Proof & Rot-Resistant:** Engineered PVC material ensures a durable, infiltration-proof seal that stands the test of time.
- • **Flexible Fit for Perfect Seal:** Adjustable stainless steel clamps provide a custom fit, eliminating leaks and reducing installation frustration.

## Overview

The Supply Giant 6I54 Flexible PVC Reducing Coupling features a 3.5" x 1.9" inner diameter with stainless steel clamps, designed for seamless connection between 3" and 1.5" nominal pipes. Made from durable, chemical- and UV-resistant PVC, it offers leak-proof, rot-proof performance for drain, waste, vent, and sewer systems. Certified to ASTM C1173 and UPC standards, this coupling is trusted for both indoor and underground use, delivering professional-grade reliability and easy installation.

## Description

Supply Giant Flexible Couplings have found wide acceptance among sewer and plumbing contractors and municipalities because of their quality and ease of installation. Supply Giant pipe couplings and adapters are used for all types of in-house and sewer connections: drain, waste, vent piping, house-to-main, repairs, cut-ins, conductor, roof drains and increasers-reducers. Manufacturing thousands of different flexible coupling types, Supply Giant has the right solution for most applications. Made of tough elastomeric polyvinyl chloride (PVC), the flexible couplings are strong, resilient and unaffected by soil conditions. They are also resistant to chemicals, ultraviolet rays, and normal sewer gases due to the inert nature and physical properties of the PVC material. Supply Giant flexible couplings are leak-proof, rot-proof and seal against infiltration and exfiltration, giving you confidence in your pipe connections. ***CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including Phthalates content which are known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www. P65warnings. ca. gov ⚠ California Proposition 65 Warning: This product is known to the state of California to cause cancer, or other reproductive harm. For more information, go to www.p65warnings.ca.gov. ⚠ California Proposition 65 Warning: This product is known to the state of California to cause cancer, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

Review: Great replacement! - Our landscaper manage to damage our other one that was installed at the time the house was built, and we decided to replace it with this particular one. It was easy to set up and install. No problems whatsoever. Nice quality and well-made.
Review: Great solution for different sized dust port sizes - Helps tremendously with connecting different sized dust collection systems. Infindnthe reducers out there ofnhard plastic arent quite fitting which is frustrating. Because these are rubber and can be sized with worm drive clamps you can adjust it to fit perfectly. I wouldnt bother with hard plastic reducers unless from same company as your woodworking power tool.

## Features

- Flexible Coupling Compatible with cast Iron, plastic, copper, lead, and steel piping
- Flexible Connectors are Leak-Proof, Rot-Proof and Sealed Against Infiltration and Exfiltration,
- May be used for Non-Pressure Drain, waste, and vent (DWV) piping Systems and sewer Systems indoors and outdoors
- ConForms to ASTM C1173, CSA B602, Certified and UPC Approved, Rated for underground use
- Each Rubber Fitting is marked with part number, size, and Certifications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07C7NCBBC |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #85,905 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2,740 in Pipe Fittings |
| Brand | SUPPLYGIANT |
| Certification | not_applicable |
| Color | Black |
| Connector Type | Flange |
| Customer Reviews | 4.6 4.6 out of 5 stars (205) |
| Date First Available | April 16, 2018 |
| Exterior Finish | Zinc |
| Global Trade Identification Number | 00804595048320 |
| Included Components | Coupling |
| Item Package Quantity | 1 |
| Item Weight | 8 ounces |
| Item dimensions L x W x H | 3 x 3 x 4 inches |
| Item model number | 6I54 |
| Manufacturer | Everflow |
| Material | Polyvinyl Chloride |
| Measurement System | inch |
| Number of Pieces | 1 |
| Part Number | 6I54 |
| Product Dimensions | 3 x 3 x 4 inches |
| Shape | coupling |
| Size | 3 x 1-1/2 |
| Style | Single Unit |
| Thread Size | 1.5 inch |
| UPC | 804595048320 |
| Warranty Description | 4834, 9.555 |
| Water Consumption | 1 Gallons per Flush |

## Product Details

- **Brand:** SUPPLYGIANT
- **Color:** Black
- **Connector Type:** Flange
- **Exterior Finish:** Zinc
- **Item Weight:** 0.5 Pounds
- **Item dimensions L x W x H:** 3 x 3 x 4 inches
- **Material:** Polyvinyl Chloride
- **Number of Pieces:** 1
- **Size:** 3 x 1-1/2
- **Thread Size:** 1.5 inch

## Images

![Supply Giant 6I54 Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 3.5" x 1.9" Inner Diameter for 3" x 1.5" Nominal Pipe, Black - Image 1](https://m.media-amazon.com/images/I/61Qo3jzuHAL.jpg)
![Supply Giant 6I54 Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 3.5" x 1.9" Inner Diameter for 3" x 1.5" Nominal Pipe, Black - Image 2](https://m.media-amazon.com/images/I/61PDXjV3EXL.jpg)
![Supply Giant 6I54 Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 3.5" x 1.9" Inner Diameter for 3" x 1.5" Nominal Pipe, Black - Image 3](https://m.media-amazon.com/images/I/71Ox6mC4IsL.jpg)
![Supply Giant 6I54 Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 3.5" x 1.9" Inner Diameter for 3" x 1.5" Nominal Pipe, Black - Image 4](https://m.media-amazon.com/images/I/614iNrBzAlL.jpg)
![Supply Giant 6I54 Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 3.5" x 1.9" Inner Diameter for 3" x 1.5" Nominal Pipe, Black - Image 5](https://m.media-amazon.com/images/I/61Sjrp6+HjL.jpg)

## Questions & Answers

**Q: Is there an adapter that will go from one and a half inches to three-quarter inches?**
A: not from this type

**Q: Sirve para agua caliente,cloro oara tuberia pvc en piscinas?**
A: This connects DWV piping, cast iron, plastic, copper or schedule 40 steel pipe.

**Q: Does this transition coupling come in size 1 1/2” to 1”? If so, what’s the part number?**
A: No

**Q: what are the actual ID's of both ends in inches?**
A: 3.5 x 2

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great replacement!
*by G***! on March 5, 2024*

Our landscaper manage to damage our other one that was installed at the time the house was built, and we decided to replace it with this particular one. It was easy to set up and install. No problems whatsoever. Nice quality and well-made.

### ⭐⭐⭐⭐⭐ Great solution for different sized dust port sizes
*by E***1 on December 11, 2019*

Helps tremendously with connecting different sized dust collection systems. Infindnthe reducers out there ofnhard plastic arent quite fitting which is frustrating. Because these are rubber and can be sized with worm drive clamps you can adjust it to fit perfectly. I wouldnt bother with hard plastic reducers unless from same company as your woodworking power tool.

### ⭐⭐⭐⭐⭐ High quality materials
*by C***. on December 14, 2023*

Fit great!

## Frequently Bought Together

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-20*