---
product_id: 86542368
title: "300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk"
brand: "alwsci"
price: "R$371"
currency: BRL
in_stock: true
category: "Alwsci"
url: https://www.desertcart.com.br/products/86542368-300-ul-vial-inserts-6x31-mm-borosilicate-glass-conical-base
store_origin: BR
region: Brazil
---

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

**Brand:** alwsci
**Price:** R$371
**Availability:** ✅ In Stock

## Summary

> 🧪 Elevate your lab game with precision and clarity!

## Quick Answers

- **What is this?** 300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk by alwsci
- **How much does it cost?** R$371 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/86542368-300-ul-vial-inserts-6x31-mm-borosilicate-glass-conical-base)

## 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

- • **Universal Fit:** Compatible with 9-425, 11mm crimp & snap top vials for versatile lab use
- • **Durable Design:** Conical base for efficient sample recovery and minimal residue
- • **Premium Clarity:** Crystal-clear borosilicate glass ensures flawless visibility
- • **Precision Capacity:** Optimized 300 µL usable volume for exact sample handling
- • **Bulk Pack Advantage:** 100 inserts per pack to keep your workflow uninterrupted

## Overview

These 300 µL vial inserts are crafted from USP Type 1, 68 borosilicate glass with a conical base, designed for compatibility with 9-425 vials and 11mm crimp or snap tops. Measuring 6x31 mm, they offer a usable volume of 300 µL and come in a convenient 100-piece pack, ensuring reliable, high-clarity sample containment for professional laboratory environments.

## Description

300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk | Fill vol: 350 ul, Usable vol: 300 ul, for 9-425 Vials, 11mm Crimp Top Vial and 11 mm Snap Top Vial: desertcart.com: Industrial & Scientific

## 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 | #294,793 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #538 in Lab Sample Vials |
| Date First Available | May 30, 2018 |
| Item Weight | 3.52 ounces |
| Item model number | 2ML-N2004 |
| Manufacturer | ALWSCI |
| Package Dimensions | 4.65 x 4.06 x 1.69 inches |

## Images

![300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk - Image 1](https://m.media-amazon.com/images/I/21wx6EOfJWL.jpg)
![300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk - Image 2](https://m.media-amazon.com/images/I/21JvxhmYb8L.jpg)
![300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk - Image 3](https://m.media-amazon.com/images/I/21LiiBqTUlL.jpg)
![300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk - Image 4](https://m.media-amazon.com/images/I/21MufmAjr6L.jpg)
![300 ul Vial Inserts, 6x31 mm Borosilicate Glass, Conical Base, 100 pcs/pk - Image 5](https://m.media-amazon.com/images/I/31UxklLJjvL.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 )

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

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-11-02*