---
product_id: 86542368
title: "ALWSCI 300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk"
brand: "alwsci"
price: "43521CFA"
currency: XOF
in_stock: true
reviews_count: 6
category: "Alwsci"
url: https://www.desertcart.sn/products/86542368-alwsci-300-ul-vial-inserts-6x31-mm-borosilicate-glass-conical
store_origin: SN
region: Senegal
---

# 6x31 mm compact conical design USP Type 1 Borosilicate glass purity 300 µL usable volume precision ALWSCI 300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk

**Brand:** alwsci
**Price:** 43521CFA
**Availability:** ✅ In Stock

## Summary

> 🧪 Elevate your lab game with precision and clarity — don’t let your samples settle for less!

## Quick Answers

- **What is this?** ALWSCI 300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk by alwsci
- **How much does it cost?** 43521CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/86542368-alwsci-300-ul-vial-inserts-6x31-mm-borosilicate-glass-conical)

## Best For

- alwsci enthusiasts

## Why This Product

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

## Key Features

- • **Conical Base Design:** Facilitates bubble-free sample introduction and efficient sample recovery
- • **Bulk Pack Efficiency:** 100 inserts per pack to keep your workflow uninterrupted and cost-effective
- • **Universal Compatibility:** Fits standard 9-425 vials, 11 mm crimp and snap top vials for seamless lab integration
- • **Precision Sample Handling:** Optimized 300 µL fill volume for exact measurements and minimal waste
- • **Premium Borosilicate Glass:** USP Type 1, 68 borosilicate ensures chemical resistance and clarity for reliable results

## Overview

The ALWSCI 300 µL vial inserts are crafted from USP Type 1, 68 borosilicate glass, featuring a conical base and compact 6x31 mm dimensions. Designed for 9-425 vials and compatible with 11 mm crimp and snap tops, these inserts provide a precise 300 µL usable volume, ensuring bubble-free, contamination-resistant sample handling. Sold in packs of 100, they are ideal for professional labs seeking reliability and efficiency.

## Description

ALWSCI 300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk: desertcart.com: Industrial & Scientific

Review: These inserts work for 2 mL HPLC vials - These inserts work for 2 mL HPLC vials. To avoid bubbles, Introduce the sample from the bottom of the insert using a micropipette.
Review: Glass inserts that work - Product showed up on time and worked well with 2ml amber glass vials

## Features

- 300 ul Vial Inserts Glass Bevelled Bottom Clear Insert Tube for 9-425 Vials, 11mm Crimp Top Vial and 11 mm Snap Top Vial
- Material: USP Type 1, 68 Borosilicate Expansion, 1st Hydrolytic, Clear Glass
- Dimensions: 31 x 6 mm
- Fill vol: 350 ul ,Usable vol: 300 ul
- Content: 100 pcs/pk

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DF7LNNT |
| Best Sellers Rank | #296,593 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #457 in Lab Sample Vials |
| Date First Available | May 30, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.52 ounces |
| Item model number | 2ML-N2004 |
| Manufacturer | ALWSCI |
| Package Dimensions | 4.65 x 4.06 x 1.69 inches |

## Images

![ALWSCI 300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk - Image 1](https://m.media-amazon.com/images/I/51qHiKUv3dL.jpg)
![ALWSCI 300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk - Image 2](https://m.media-amazon.com/images/I/418LYvHa51L.jpg)
![ALWSCI 300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk - Image 3](https://m.media-amazon.com/images/I/4116XQUJNnL.jpg)
![ALWSCI 300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk - Image 4](https://m.media-amazon.com/images/I/51cZv4OeLHL.jpg)
![ALWSCI 300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk - Image 5](https://m.media-amazon.com/images/I/61O4fdA3LeL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is the outside diameter (od) exactly 5mm? what is the manufacturing tolerance of the od?**
A: Yes, Our 0.25ml glass Vial Insert, Flat base. Outside diameter is 5mm ( Tolerance is 4.7 - 4.95mm)    The height is 31mm ( Tolerance is 30.0 - 31.0mm )

## Customer Reviews

### ⭐⭐⭐⭐⭐ These inserts work for 2 mL HPLC vials
*by L***S on February 19, 2025*

These inserts work for 2 mL HPLC vials. To avoid bubbles, Introduce the sample from the bottom of the insert using a micropipette.

### ⭐⭐⭐⭐⭐ Glass inserts that work
*by S***R on October 1, 2020*

Product showed up on time and worked well with 2ml amber glass vials

### ⭐⭐⭐⭐⭐ Excellent product
*by M***E on February 18, 2021*

Exactly what I expected. Came in a timely manner

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**Shop now:** [https://www.desertcart.sn/products/86542368-alwsci-300-ul-vial-inserts-6x31-mm-borosilicate-glass-conical](https://www.desertcart.sn/products/86542368-alwsci-300-ul-vial-inserts-6x31-mm-borosilicate-glass-conical)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-05*