---
product_id: 513203647
title: "J/B Industries PR-308 Flexible Vacuum Pump Coupler Sleeve Only"
brand: "jb industries"
price: "1819656₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/513203647-j-b-industries-pr-308-flexible-vacuum-pump-coupler-sleeve
store_origin: VN
region: Vietnam
---

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

**Brand:** jb industries
**Price:** 1819656₫
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade Your Pump Game!

## Quick Answers

- **What is this?** J/B Industries PR-308 Flexible Vacuum Pump Coupler Sleeve Only by jb industries
- **How much does it cost?** 1819656₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/513203647-j-b-industries-pr-308-flexible-vacuum-pump-coupler-sleeve)

## 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 integration with PR-208 models.
- • **Quality Assurance:** Manufactured by J/B Industries, a trusted name in vacuum technology.
- • **Compact Dimensions:** Perfectly sized at 8.89 x 5.51 x 2.49 cm for efficient storage.
- • **Lightweight Design:** Weighs only 18 g for easy handling and installation.
- • **Versatile Replacement:** Compatible with multiple models including PR308 and Guardian 18.

## Overview

The J/B Industries PR-308 Flexible Vacuum Pump Coupler Sleeve is a high-quality replacement sleeve designed specifically for the PR-208 model. With precise dimensions of 7/8" in length and 1-1/8" in diameter, this lightweight component ensures optimal performance and compatibility with various models, including PR308 and Guardian 18. Weighing just 18 g and featuring compact dimensions, it’s the perfect solution for efficient vacuum pump maintenance.

## Description

J/B Industries 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

![J/B Industries PR-308 Flexible Vacuum Pump Coupler Sleeve Only - Image 1](https://m.media-amazon.com/images/I/411pKK2uFjL.jpg)
![J/B Industries PR-308 Flexible Vacuum Pump Coupler Sleeve Only - Image 2](https://m.media-amazon.com/images/I/31TFc9-GdDL.jpg)
![J/B Industries PR-308 Flexible Vacuum Pump Coupler Sleeve Only - Image 3](https://m.media-amazon.com/images/I/41y6CSkUSIL.jpg)
![J/B Industries 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.vn/products/513203647-j-b-industries-pr-308-flexible-vacuum-pump-coupler-sleeve](https://www.desertcart.vn/products/513203647-j-b-industries-pr-308-flexible-vacuum-pump-coupler-sleeve)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-14*