---
product_id: 67436435
title: "Supply Giant 6I57 Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 4.5\" x 2.4\" Inner Diameter for 4\" x 2\" Nominal Pipe, Black"
brand: "supplygiant"
price: "$17.03"
currency: USD
in_stock: true
reviews_count: 8
category: "Supplygiant"
url: https://www.desertcart.us/products/67436435-supply-giant-6i57-flexible-pvc-reducing-coupling-with-stainless-steel
store_origin: US
region: United States of America
---

# ASTM C1173 & UPC certified for underground use 4.5" x 2.4" inner diameter precision fit Stainless steel clamps for corrosion resistance Supply Giant 6I57 Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 4.5" x 2.4" Inner Diameter for 4" x 2" Nominal Pipe, Black

**Brand:** supplygiant
**Price:** $17.03
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with confidence—where flexibility meets industrial strength!

## Quick Answers

- **What is this?** Supply Giant 6I57 Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 4.5" x 2.4" Inner Diameter for 4" x 2" Nominal Pipe, Black by supplygiant
- **How much does it cost?** $17.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/67436435-supply-giant-6i57-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

- • **Leak & Rot Proof:** Engineered flexible PVC ensures zero infiltration or exfiltration
- • **Certified Durability:** Meets ASTM C1173 & CSA B602 standards for trusted underground performance
- • **Versatile Application:** Ideal for DWV, sewer, roof drains & more—indoors or outdoors
- • **Effortless Installation:** Flexible design and stainless clamps make repairs and upgrades a breeze
- • **Universal Compatibility:** Seamlessly connects cast iron, plastic, copper, lead & steel pipes

## Overview

The Supply Giant 6I57 Flexible PVC Reducing Coupling features a 4.5" x 2.4" inner diameter with robust stainless steel clamps, designed for leak-proof, rot-resistant connections across multiple pipe materials. Certified to ASTM C1173 and UPC standards, it’s built for reliable underground and indoor/outdoor use in drain, waste, vent, and sewer systems. Its flexible yet durable PVC construction ensures easy installation and long-lasting performance, making it a trusted choice for professional plumbing and municipal projects.

## 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.⚠ 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: Reducer - Worked as advertised
Review: Expensive – no, not when you see what it can do for making a dust pickup system. - I bought the 4”x2” version to use on my band saw and was surprised to see that the I.D. was greater than expected (actual: 4-3/8” and 2-1/4”) but rugged as it is, it easily clamped on the port. Another bonus for me was that the 2” side will easily slide over a 2” schedule 40 PVC pipe and even up to a 2-3/8” wand extension! Sure makes matching band saws and table saws to various sized pipes cheaper by reducing the need for special sized connectors.

## 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 | B07CH6N9XH |
| Best Sellers Rank | #374,316 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11,277 in Pipe Fittings |
| Brand Name | SUPPLYGIANT |
| Color | Black |
| Connector Type | Flange |
| Customer Reviews | 4.4 4.4 out of 5 stars (118) |
| Exterior Finish | Stainless Steel |
| Global Trade Identification Number | 00804595048351 |
| Included Components | Coupling |
| Item Dimensions | 4 x 4 x 5 inches |
| Item Type Name | Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 4 x 2 Inch, Black |
| Item Weight | 9.6 ounces |
| Manufacturer | Everflow |
| Manufacturer Warranty Description | 4836, 8.82 |
| Material Type | Polyvinyl Chloride |
| Model Number | 6I57 |
| Number of Pieces | 1 |
| Size | 4 x 2 |
| UPC | 804595048351 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** SUPPLYGIANT
- **Color:** Black
- **Connector Type:** Flange
- **Exterior Finish:** Stainless Steel
- **Global Trade Identification Number:** 00804595048351
- **Item Weight:** 9.6 ounces
- **Item dimensions L x W x H:** 4 x 4 x 5 inches
- **Material:** Polyvinyl Chloride
- **Number of Pieces:** 1
- **Size:** 4 x 2

## Images

![Supply Giant 6I57 Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 4.5" x 2.4" Inner Diameter for 4" x 2" Nominal Pipe, Black - Image 1](https://m.media-amazon.com/images/I/61SZ40436ZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reducer
*by T***N on January 19, 2026*

Worked as advertised

### ⭐⭐⭐⭐⭐ Expensive – no, not when you see what it can do for making a dust pickup system.
*by J***R on June 27, 2020*

I bought the 4”x2” version to use on my band saw and was surprised to see that the I.D. was greater than expected (actual: 4-3/8” and 2-1/4”) but rugged as it is, it easily clamped on the port. Another bonus for me was that the 2” side will easily slide over a 2” schedule 40 PVC pipe and even up to a 2-3/8” wand extension! Sure makes matching band saws and table saws to various sized pipes cheaper by reducing the need for special sized connectors.

### ⭐⭐⭐⭐⭐ Excellent dust Port!
*by A***G on April 10, 2020*

Purchased this for my 4” dust port on my Grizzly band saw. It attaches perfectly to my shop vac hose. I like the flexibility of the port and the ability to clamp it snuggly to the saw port as well as the shop vac hose. This flexible feature cuts down on the amount of sawdust that would otherwise be lost with a standard plastic port.

## Frequently Bought Together

- Supply Giant 6I57 Flexible Pvc Reducing Coupling with Stainless Steel Clamps, 4.5" x 2.4" Inner Diameter for 4" x 2" Nominal Pipe, Black
- 4" x 20’ Ultra Flex Clear Vue Heavy Duty PVC Dust Debris and Fume Collection Hose MADE IN USA!

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-12*