---
product_id: 144361561
title: "3 Pack, PTFE Octagon with Pivot Ring Magnetic Stir Bar Set - 50mm / 1.96 Inch"
brand: "obtainsurplus"
price: "$1573"
currency: MXN
in_stock: true
reviews_count: 5
url: https://www.desertcart.mx/products/144361561-3-pack-ptfe-octagon-with-pivot-ring-magnetic-stir-bar
store_origin: MX
region: Mexico
---

# Lab-grade quality Autoclavable Chemical resistant 3 Pack, PTFE Octagon with Pivot Ring Magnetic Stir Bar Set - 50mm / 1.96 Inch

**Brand:** obtainsurplus
**Price:** $1573
**Availability:** ✅ In Stock

## Summary

> 🔗 Stir up innovation with every spin!

## Quick Answers

- **What is this?** 3 Pack, PTFE Octagon with Pivot Ring Magnetic Stir Bar Set - 50mm / 1.96 Inch by obtainsurplus
- **How much does it cost?** $1573 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/144361561-3-pack-ptfe-octagon-with-pivot-ring-magnetic-stir-bar)

## Best For

- obtainsurplus enthusiasts

## Why This Product

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

## Key Features

- • **Optimal Size:** 50mm length fits seamlessly into most lab setups.
- • **Easy to Clean:** Autoclavable design ensures hassle-free maintenance.
- • **Versatile Use:** Perfect for a variety of laboratory applications.
- • **Durable Design:** Built to withstand rigorous lab conditions.
- • **Precision Engineering:** Crafted from high-quality PTFE for superior performance.

## Overview

This 3 Pack of PTFE Octagon Magnetic Stir Bars features a robust 50mm design, crafted from chemical-resistant PTFE material, ensuring durability and reliability in laboratory settings. Autoclavable for easy sterilization, these stir bars are perfect for professionals seeking precision and efficiency in their experiments.

## Description

International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Features

- Laboratory Grade
- Chemical resistant PTFE material
- Autoclavable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Thickness | 10 Millimetres |
| Number of Pieces | 3 |
| Item Dimensions L x W x Thickness | 5L x 1W x 1Th centimetres |
| Item Shape | Octagonal |
| Colour | White |
| Material Type | PTFE_(Polytetrafluoroethylene), teflon |

## Product Details

- **Material:** PTFE_(Polytetrafluoroethylene), teflon
- **Brand:** ObtainSurplus
- **Product dimensions:** 5L x 1W x 1Th centimetres
- **Colour:** White
- **Shape:** Octagonal

## Images

![3 Pack, PTFE Octagon with Pivot Ring Magnetic Stir Bar Set - 50mm / 1.96 Inch - Image 1](https://m.media-amazon.com/images/I/51b1mhEgQuL.jpg)
![3 Pack, PTFE Octagon with Pivot Ring Magnetic Stir Bar Set - 50mm / 1.96 Inch - Image 2](https://m.media-amazon.com/images/I/61NSHCwRRPL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Excellent but!
  

*by U***R on Reviewed in the United States on 14 February 2023*

These are well made and larger than I imagined, even knowing the dimensions! I purchased the INTLLAB magnetic stirrer, which works very well, and also purchased these bars. I didn't understand at the time that the length needs to be close to the length between the centers of the magnets in the stirrer, but that information isn't provided by the seller. These work a little bit, but only at a very specific slow speed. When the speed was increased, they broke the magnetic bond and rattled around. INTLLAB included a 25mm x 7mm bar that works great up to full speed! It was my fault for not understanding.

### ⭐⭐⭐⭐⭐ 







  
  
    I like these better than shorter ones
  

*by G***S on Reviewed in the United States on 17 March 2020*

These mix the liquid faster and with less noise than the shorter bars I've used. Not unbalanced as one reviewer said, it often depends on how centered the bars are on the magnetic stirring plate (particularly home-made plates).

### ⭐⭐⭐⭐⭐ 







  
  
    Works well and large enough to stir 4L+ solutions.
  

*by A***R on Reviewed in the United States on 10 November 2019*

These work great.  I use them in a 5L erlenmeyer flask for making yeast starters (homebrewing).

## Frequently Bought Together

- ObtainSurplus 3 Pack, Magnetic Stir Bar - 50mm / 1.96 Inch
- Weewooday 8 Pieces 30 mm/ 1.18 Inch PTFE Magnetic Stirrer Mixer Stir Bar ,White Color, Stir Rod Magnetic, Laboratory Bar, Stir Plate Bar,Stir Plate Magnet

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**Shop now:** [https://www.desertcart.mx/products/144361561-3-pack-ptfe-octagon-with-pivot-ring-magnetic-stir-bar](https://www.desertcart.mx/products/144361561-3-pack-ptfe-octagon-with-pivot-ring-magnetic-stir-bar)

---

*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-02-26*