---
product_id: 540767561
title: "JB Industries J/B PR-308 Flexible Vacuum Pump Coupler Sleeve Only"
brand: "jb industries"
price: "₩87947"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/540767561-jb-industries-j-b-pr-308-flexible-vacuum-pump-coupler
store_origin: KR
region: South Korea
---

# Length: 7/8" Diameter: 1-1/8" Weight: 18 g JB Industries J/B PR-308 Flexible Vacuum Pump Coupler Sleeve Only

**Brand:** jb industries
**Price:** ₩87947
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with Confidence!

## Quick Answers

- **What is this?** JB Industries J/B PR-308 Flexible Vacuum Pump Coupler Sleeve Only by jb industries
- **How much does it cost?** ₩87947 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/540767561-jb-industries-j-b-pr-308-flexible-vacuum-pump-coupler)

## Best For

- jb industries enthusiasts

## Why This Product

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

## Key Features

- • **🔧 Precision Fit:** Engineered for seamless compatibility with PR-208.
- • **📦 Compact Design:** Lightweight and easy to handle at just 18 g.
- • **🌍 Eco-Friendly Choice:** Contributes to sustainability by extending equipment life.
- • **🔄 Versatile Replacement:** Supersedes multiple models for ultimate flexibility.
- • **🛠️ Durable Construction:** Built to withstand rigorous use in demanding environments.

## Overview

The JB Industries J/B PR-308 Flexible Vacuum Pump Coupler Sleeve is a high-quality replacement sleeve designed specifically for the PR-208 model. With a compact length of 7/8" and a diameter of 1-1/8", this lightweight (18 g) coupler sleeve ensures a perfect fit and reliable performance. It supersedes various models, making it a versatile choice for professionals seeking durability and efficiency in their vacuum pump systems.

## Description

JB Industries J/B PR-308 Flexible Vacuum Pump Coupler Sleeve Only

## Features

- J/B Vacuum Pump Coupler Sleeve Only
- Replacement Sleeve Only for the PR-208
- Length: 7/8"
- Diameter: 1-1/8"
- Replaces / Supersedes: PR308 , 231415 , Guardian 18 , 684520331976 and others

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | J/B Industries |
| Part number | J/B_PR-308 |
| Item Weight | 18 g |
| Package Dimensions | 8.89 x 5.51 x 2.49 cm; 18 g |
| Item model number | J/B_PR-308 |
| Item Package Quantity | 1 |

## Images

![JB Industries J/B PR-308 Flexible Vacuum Pump Coupler Sleeve Only - Image 1](https://m.media-amazon.com/images/I/411pKK2uFjL.jpg)
![JB Industries J/B PR-308 Flexible Vacuum Pump Coupler Sleeve Only - Image 2](https://m.media-amazon.com/images/I/31TFc9-GdDL.jpg)
![JB Industries J/B PR-308 Flexible Vacuum Pump Coupler Sleeve Only - Image 3](https://m.media-amazon.com/images/I/41y6CSkUSIL.jpg)
![JB Industries J/B PR-308 Flexible Vacuum Pump Coupler Sleeve Only - Image 4](https://m.media-amazon.com/images/I/41Fr1gZeMNL.jpg)

## Questions & Answers

**Q: will this fit a Bestech BT-5?**
A: I measured the length of mine, they only offered two lengths, a 7/8” long and a1 1/18” long one, mine was 7/8” long

## Frequently Bought Together

- J/B Industries PR-308 Flexible Vacuum Pump Coupler Sleeve Only
- TSI Supercool Vacuum Pump Oil, Synthetic, 32 Oz., Clear (V32)
- XTPTFABS PR308 / PR-308 Vacuum Pump Coupler Sleeve/Pump Sleeve Compatible with PR208 / PR-208 Vacuum Pump Coupler(Replace#PR308, 231415, 684520331976)

---

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**Shop now:** [https://www.desertcart.kr/products/540767561-jb-industries-j-b-pr-308-flexible-vacuum-pump-coupler](https://www.desertcart.kr/products/540767561-jb-industries-j-b-pr-308-flexible-vacuum-pump-coupler)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-03*