---
product_id: 23014761
title: "United Scientific™ FG5340-1000 Laboratory Grade Borosilicate Glass Heavy Wall Filtering Flask, Bolt Neck with Tubulation, 1000ml (1 Liter) Capacity"
brand: "united scientific"
price: "฿4470"
currency: THB
in_stock: true
reviews_count: 9
category: "United Scientific"
url: https://www.desertcart.co.th/products/23014761-united-scientific-fg5340-1000-laboratory-grade-borosilicate-glass-heavy-wall
store_origin: TH
region: Thailand
---

# Dual-scale graduations every 50mL ASTM-E960 Withstands -50°C to 500°C thermal shock 1000mL capacity for versatile lab use United Scientific™ FG5340-1000 Laboratory Grade Borosilicate Glass Heavy Wall Filtering Flask, Bolt Neck with Tubulation, 1000ml (1 Liter) Capacity

**Brand:** united scientific
**Price:** ฿4470
**Availability:** ✅ In Stock

## Summary

> 🧬 Elevate your lab game with precision and durability that never quits!

## Quick Answers

- **What is this?** United Scientific™ FG5340-1000 Laboratory Grade Borosilicate Glass Heavy Wall Filtering Flask, Bolt Neck with Tubulation, 1000ml (1 Liter) Capacity by united scientific
- **How much does it cost?** ฿4470 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/23014761-united-scientific-fg5340-1000-laboratory-grade-borosilicate-glass-heavy-wall)

## Best For

- united scientific enthusiasts

## Why This Product

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

## Key Features

- • **Heavy-Duty Design:** Thick walls and bolt neck with tubulation provide enhanced stability and secure connections for filtration setups.
- • **Precision Measurement:** Dual-scale white enamel graduations ensure accurate volume readings from 400mL to 1000mL with 50mL intervals.
- • **Effortless Maintenance:** Dishwasher safe and quality-controlled for consistent performance and longevity in busy lab environments.
- • **Thermal Shock Resistant:** Engineered to handle rapid temperature changes from -50°C to 500°C, perfect for demanding experiments.
- • **Industrial-Grade Durability:** Crafted from premium Borosilicate 3.3 glass to endure extreme lab conditions without compromise.

## Overview

The United Scientific™ FG5340-1000 is a 1-liter heavy wall filtering flask made from industrial-grade Borosilicate 3.3 glass, featuring dual-scale ASTM-E960 graduations and a bolt neck with tubulation. Designed to withstand extreme temperatures from -50°C to 500°C, it offers robust durability and precise measurement for professional laboratory filtration tasks.

## Description

These heavy wall filtering flasks are designed with heavy-duty rims and bolt necks with tubulation. 1) Borosilicate glass , 2) Graduations printed in durable white enamel , 3) Temperature range: -50°C (-58°F) up to 500°C (932°F), 4) Dimensions: 138mm Dia. x 245mm Hgt., 5) Tubing size: 3/8"

Review: I Like it! - Worked really well, seems to be heavy built.
Review: Arrived in perfect condition - I haven't used it yet because I need tubing but the flask looks to be of good quality, with thick walls and no damage occured in transit.

## Features

- Capacity: 1000mL (1L), Tubing size: 3/8"
- Graduation Range: 400-1000mL, Graduation Intervals: 50mL
- Made from industrial quality Borosilicate 3.3 glass, these flasks are built to withstand high temperatures and thermal shock.
- These flasks feature dual scale graduations per ASTM-E960 standards.
- All United Scientific flasks are dishwasher safe.
- Every United Scientific flask is manufactured using state of the art equipment. Every product undergoes various rounds of quality control, and is designed to ensure a smooth, consistent experience for our customers.
- Dimensions: 138mm Dia. x 245mm Hgt.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00ES3R29M |
| Best Sellers Rank | #204,668 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #22 in Lab Filtering Flasks |
| Bottom Shape | Round |
| Brand | United Scientific |
| Capacity | 1000 Milliliters |
| Date First Available | August 22, 2013 |
| Graduation Interval | 50 Milliliters |
| Item Weight | 1.47 pounds |
| Item model number | FG5340-1000 |
| Manufacturer | United Scientific Supplies, Inc. |
| Material | Borosilicate Glass |
| Product Dimensions | 5.43"D x 5.43"W x 9.65"H |
| Shape | Round |
| UPC | 306032538109 306032538086 840287200225 306032538079 |

## Product Details

- **Bottom Shape:** Round
- **Brand:** United Scientific
- **Capacity:** 1000 Milliliters
- **Graduation Interval:** 50 Milliliters
- **Material:** Borosilicate Glass

## Images

![United Scientific™ FG5340-1000 Laboratory Grade Borosilicate Glass Heavy Wall Filtering Flask, Bolt Neck with Tubulation, 1000ml (1 Liter) Capacity - Image 1](https://m.media-amazon.com/images/I/51EYBphcgUL.jpg)

## Questions & Answers

**Q: What is the tube size? My 1/4" ID tube will not fit.**
A: Try 5/16" ID Silicone tubing.  3/8" Tygon might work as well.

**Q: is anyone positive (Not "pretty sure") what size stopper works with this flask?**
A: The flask opening is one and three-eighths inch in diameter.  Do a internet search for standard stopper sizes.  A stopper that is one and one-half inches in diameter at the widest end should be adequate.

**Q: What size stopper fits this flask?**
A: I'm pretty sure it was a size 10

**Q: Stopper size?**
A: Hey Carlton.  Where I found my "Stopper" was a Local place that supplies equip to the Home Beer Brewer.  I will looking for something that was "Food" Grade.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I Like it!
*by M***T on April 14, 2025*

Worked really well, seems to be heavy built.

### ⭐⭐⭐⭐⭐ Arrived in perfect condition
*by J***Y on February 10, 2022*

I haven't used it yet because I need tubing but the flask looks to be of good quality, with thick walls and no damage occured in transit.

### ⭐⭐⭐⭐⭐ Works great
*by S***I on May 5, 2025*

Works as it should no complaints

## Frequently Bought Together

- United Scientific™ FG5340-1000 Laboratory Grade Borosilicate Glass Heavy Wall Filtering Flask, Bolt Neck with Tubulation, 1000ml (1 Liter) Capacity
- 9 Count Filter Adapter Cones Set, Buchner Funnel Flask Adapter Set, Tapered Collar
- United Scientific™ JBF600 Buchner Funnel, Porcelain, Capacity 600mL, Compatible with 11cm Filter Paper, 1 Each

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-24*