---
product_id: 60096395
title: "Flex Coupler"
brand: "j/b industries"
price: "₩50117"
currency: KRW
in_stock: false
reviews_count: 8
url: https://www.desertcart.kr/products/60096395-flex-coupler
store_origin: KR
region: South Korea
---

# 1.5" length precision fit Universal replacement for multiple models 0.5" bore shaft compatibility Flex Coupler

**Brand:** j/b industries
**Price:** ₩50117
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Upgrade your pump game with the Flex Coupler — fit, function, and flawless performance!

## Quick Answers

- **What is this?** Flex Coupler by j/b industries
- **How much does it cost?** ₩50117 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/60096395-flex-coupler)

## Best For

- j/b industries enthusiasts

## Why This Product

- Trusted j/b industries brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Replacement:** Supersedes multiple part numbers including PR208 and Guardian-18, making it the go-to coupler for professionals.
- • **Effortless Installation:** User-friendly design guarantees a perfect fit without hassle, saving you time and frustration.
- • **Versatile Compatibility:** Fits a wide range of J/B Industries vacuum pumps and many others with matching dimensions.
- • **Precision Engineered Fit:** 1.5-inch length and 1-5/32-inch diameter ensure seamless integration with your vacuum pump.
- • **Durable Nylon Construction:** Lightweight yet robust material designed to withstand demanding pump operations.

## Overview

The Flex Coupler by J/B Industries is a precision-engineered nylon coupler designed for vacuum pumps, featuring a 1.5-inch length and 0.5-inch bore size. It replaces multiple legacy parts, ensuring broad compatibility and easy installation, making it an essential upgrade for professionals seeking reliable pump performance.

## Description

J/B Industries Part # PR-208Product SpecificationsJ/B Vacuum Pump Coupler Length: 1-1/2"Diameter: 1-5/32"Bore (Shaft) Size: 1/2"Coupler Sleeve Only - PR-308Vacuum Pumps Equipped with PR-208:DV42N, DV-85N, DV-142N, DV-200N, DV-285N (Manufactured After Jan 2001)DV85, DV-142N, DV-200N, DV-285N (Manufactured Jan 1995 to Dec 2000)DV-3E, DV-4E, DV-6E Eliminator SeriesUsed with Platinum and Eliminator Series Vacuum PumpsCan also be used on pumps from other manufacturers with the same dimensional coupler.Replaces / Supersedes: PR208 , H26-477 , 684520105287 , Guardian-18 and others.

Review: The right fit for my vacuum pump. - Fit perfectly and easy to install.
Review: works great - fit just right on my vacuum pump.

## Features

- J/B Vacuum Pump Coupler
- Length: 1-1/2"
- Diameter: 1-5/32"
- Bore (Shaft) Size: 1/2"
- Replaces / Supersedes: PR208 , H26-477 , Guardian 18 , 684520105287 and others

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07B8L72HK |
| Best Sellers Rank | #300,110 in Automotive ( See Top 100 in Automotive ) #655 in Air Conditioning Line Repair Tools |
| Brand | J/B Industries |
| Color | Green |
| Date First Available | March 5, 2018 |
| Item Length | 1.5 Inches |
| Item Weight | 3.2 ounces |
| Item model number | J/B_PR-208 |
| Manufacturer | J/B Industries |
| Material | Nylon |
| Nominal Wall Thickness | 0.421875 inches |
| Outside Diameter | 1.34 Inches |

## Product Details

- **Brand:** J/B Industries
- **Color:** Green
- **Item Length:** 1.5 Inches
- **Manufacturer:** J/B Industries
- **Material:** Nylon
- **Nominal Wall Thickness:** 0.421875 inches
- **Outside Diameter:** 1.34 Inches

## Images

![Flex Coupler - Image 1](https://m.media-amazon.com/images/I/4122kZJ8s4L.jpg)
![Flex Coupler - Image 2](https://m.media-amazon.com/images/I/41DD4t5WwWL.jpg)
![Flex Coupler - Image 3](https://m.media-amazon.com/images/I/31sT0qQSf0L.jpg)
![Flex Coupler - Image 4](https://m.media-amazon.com/images/I/31qB2BwT6ZL.jpg)

## Questions & Answers

**Q: what size shaft does this fit ?**
A: 1/2inch

**Q: What is the sizes on each end? Overall length?**
A: Both ends are 1/2 inch

**Q: What diameter shaft does this fit?**
A: 1/2" shaft size

## Customer Reviews

### ⭐⭐⭐⭐⭐ The right fit for my vacuum pump.
*by D***D on May 30, 2025*

Fit perfectly and easy to install.

### ⭐⭐⭐⭐⭐ works great
*by M***S on April 18, 2025*

fit just right on my vacuum pump.

### ⭐⭐⭐⭐⭐ this fit perfect using a 1/8" Allen, looks to be like a perfect duplicate
*by M***N on December 3, 2024*

you can just use the rubber piece or change metal pieces also as they seem to fit the rubber better.

## Frequently Bought Together

- Flex Coupler
- TSI Supercool Vacuum Pump Oil, Synthetic, 32 Oz., Clear (V32)
- J/B Industries PR-308 Flexible Vacuum Pump Coupler Sleeve Only

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**Shop now:** [https://www.desertcart.kr/products/60096395-flex-coupler](https://www.desertcart.kr/products/60096395-flex-coupler)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-04-24*