---
product_id: 154586695
title: "Rocwing - Borosilicate 3.3 Graduated Conical Glass Flask for Laboratory (50ml+100ml+250ml)"
brand: "rocwing"
price: "€ 42.00"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.fi/products/154586695-rocwing-borosilicate-3-3-graduated-conical-glass-flask-for-laboratory
store_origin: FI
region: Finland
---

# Food Contact Safe Heat Resistant Borosilicate 3.3 Glass Rocwing - Borosilicate 3.3 Graduated Conical Glass Flask for Laboratory (50ml+100ml+250ml)

**Brand:** rocwing
**Price:** € 42.00
**Availability:** ✅ In Stock

## Summary

> 🔍 Elevate Your Lab Game with Rocwing!

## Quick Answers

- **What is this?** Rocwing - Borosilicate 3.3 Graduated Conical Glass Flask for Laboratory (50ml+100ml+250ml) by rocwing
- **How much does it cost?** € 42.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/154586695-rocwing-borosilicate-3-3-graduated-conical-glass-flask-for-laboratory)

## Best For

- rocwing enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Sizes:** Includes 50ml, 100ml, and 250ml flasks for all your experimental needs.
- • **Certified Safety:** SGS UK tested and compliant with BS 6748:1986 for food contact safety.
- • **Precision Engineering:** Crafted from high-quality borosilicate glass for superior durability.
- • **Thermal Shock Resistance:** Designed to withstand extreme temperature changes without breaking.
- • **Clear Graduation Markings:** Easily measure and note your solutions with white graduation markings.

## Overview

The Rocwing Borosilicate 3.3 Glass Graduated Conical Erlenmeyer Flask set includes three essential sizes (50ml, 100ml, and 250ml) crafted from high-quality borosilicate glass. These flasks are heat and thermal shock resistant, featuring clear white graduation markings for precise measurements. Tested for safety and compliance, they are perfect for both laboratory and food contact applications.

## Description

Rocwing - Borosilicate 3.3 Graduated Conical Glass Flask for Laboratory (50ml+100ml+250ml)

## Features

- Borosilicate 3.3 Glass, Heat and Thermal Shock Resistant
- 50/100/250/500/1000ml flask with standard uniform wall
- 2000/3000/5000ml flask with advance uniform wall, slightly thicker
- White graduation markings, white note writing display
- SGS UK tested, all Rocwing glassware including beakers, flasks and cylinders in compliance with BS 6748:1986 (Food Contact Safe)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | HuiDa |
| Part number | Flask-50-100-250 |
| Item Weight | 380 g |
| Manufacturer reference | Flask-50-100-250 |
| Size | 50ml+100ml+250ml |
| Material | Borosilicate Glass |
| Item Package Quantity | 1 |
| Cutting Diameter | 85 Millimetres |
| Included components | 3 |
| Batteries included? | No |
| Batteries Required? | No |
| Item diameter | 85 Millimetres |

## Images

![Rocwing - Borosilicate 3.3 Graduated Conical Glass Flask for Laboratory (50ml+100ml+250ml) - Image 1](https://m.media-amazon.com/images/I/51yG0FD+-HL.jpg)
![Rocwing - Borosilicate 3.3 Graduated Conical Glass Flask for Laboratory (50ml+100ml+250ml) - Image 2](https://m.media-amazon.com/images/I/31PmXhVjEUL.jpg)
![Rocwing - Borosilicate 3.3 Graduated Conical Glass Flask for Laboratory (50ml+100ml+250ml) - Image 3](https://m.media-amazon.com/images/I/51muhQNfX9L.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great for making yeast starter
  

*by J***R on Reviewed in the United Kingdom on 28 December 2023*

Arrived well packaged inside a bubble wrap bag and cardboard box.I'm using it with a magnetic stir plate to make yeast starters for my homebrew.  Most brewers use a 2l conical flask for their starters but I decided the 1l was sufficient for the styles of beer I brew.  Very happy with my purchase so far.  Hopefully it will last me many years.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    good solid flask
  

*by R***D on Reviewed in the United Kingdom on 3 October 2023*

This is very sturdy, good quality glassware and I am confident it will survive for many years of brewing, perfect for making up yeast starters.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Best option for fast and safe delivery
  

*by C***4 on Reviewed in the United Kingdom on 19 October 2023*

I’m a science teacher who’s doing little demos at home for tutoring and I needed a set of glassware quite urgently. They packed it very carefully and it arrived with me the next day! Very happy!

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**Shop now:** [https://www.desertcart.fi/products/154586695-rocwing-borosilicate-3-3-graduated-conical-glass-flask-for-laboratory](https://www.desertcart.fi/products/154586695-rocwing-borosilicate-3-3-graduated-conical-glass-flask-for-laboratory)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-10*