---
product_id: 6629443
title: "Plastic Test Tube Rack for 15/18 mm Tubes, Hole Diameter is 18.7mm, Holds 50, Detachable, Karter Scientific 208U2 (Pack of 1)"
brand: "karter scientific"
price: "₩24996"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/6629443-plastic-test-tube-rack-for-15-18-mm-tubes-hole
store_origin: KR
region: South Korea
---

# 18.7mm diameter 50 holes 3-layer design Plastic Test Tube Rack for 15/18 mm Tubes, Hole Diameter is 18.7mm, Holds 50, Detachable, Karter Scientific 208U2 (Pack of 1)

**Brand:** karter scientific
**Price:** ₩24996
**Availability:** ✅ In Stock

## Summary

> 🔍 Elevate Your Experimentation Game!

## Quick Answers

- **What is this?** Plastic Test Tube Rack for 15/18 mm Tubes, Hole Diameter is 18.7mm, Holds 50, Detachable, Karter Scientific 208U2 (Pack of 1) by karter scientific
- **How much does it cost?** ₩24996 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/6629443-plastic-test-tube-rack-for-15-18-mm-tubes-hole)

## Best For

- karter scientific enthusiasts

## Why This Product

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

## Key Features

- • **Smart Design:** Innovative 3-layer structure ensures stability and easy access.
- • **Organize with Ease:** Keep your lab essentials neatly arranged with 50 dedicated holes.
- • **Portable Convenience:** Lightweight design makes it easy to transport your samples anywhere.
- • **Durable & Lightweight:** Crafted from laboratory-grade polystyrene for long-lasting use.
- • **Versatile Compatibility:** Accommodates test tubes with diameters from 15mm to 18mm.

## Overview

The Karter Scientific 208U2 Plastic Test Tube Rack is a versatile and durable solution for organizing test tubes ranging from 15mm to 18mm in diameter. With a capacity of 50 holes and a smart 3-layer design, this lightweight rack is perfect for both professional labs and DIY projects, ensuring your samples are always secure and accessible.

## Description

Plastic Test Tube Rack for 15/18 mm Tubes, Hole Diameter is 18.7mm, Holds 50, Detachable, Karter Scientific 208U2 (Pack of 1)

## Features

- 50 hole,Diameter: 18.7mm/0.74"
- These are great for making homemade chapsticks, storing ink samples, test tubes, lip balm, great for holding small cylinders upright
- Suitable for test tubes with an OD ranging from 15mm to 18mm
- The test tube rack are made of laboratory grade polystyrene, durable and light weight, easy to carry, not autoclavable
- The test tube has 3 Layer, 2 slots, each layer has a direction, slide the shelves in from one side, the other side has a lip that stops it, fits very snug. The stand has three layers of holes with a smallest hole at the bottom to keep tubes steady, and the large holes on the second and the top floor

## Images

![Plastic Test Tube Rack for 15/18 mm Tubes, Hole Diameter is 18.7mm, Holds 50, Detachable, Karter Scientific 208U2 (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/71FFiF6FJUL.jpg)

## Available Options

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

## Questions & Answers

**Q: what is the dimensions , L X W X H?**
A: 10.25" x ~4.75" x ~2.75"The W and H are a little shorter than mentioned, but I was being lazy. I use this rack for holding test tubes for aquarium chemical level tests. Works pretty well for me. Kind flimsy if you don't put in the middle shelf. It's strong enough for me to carry it with one hand from one of the legs.The top of the first shelf is about .5" off the table. The top of the top shelf is 2.5"  off the table.

**Q: Would this be able to hold up a tube that's 15 cm long?  I want to make sure the tubes I use arent too long.**
A: I purchased this rack intending to use it for 15 cm tubes of beads, however I found it is not ideal for tubes that long.  It will hold them, but they flop around a lot and this causes the "shelves" of the rack to start sliding out.  A taller rack or one with shelves that were fixed in place would be better.

**Q: Is this autoclavable?**
A: No, it is light duty plastic I would not trust for an autoclave.

**Q: can top slide be left off so that essential oil roller vials could fit?**
A: Hello Delores, Thank you for your interest in our product. This rack is detachable, therefore, you would be able to take off the top slide.

## Frequently Bought Together

- Plastic Test Tube Rack for 15/18 mm Tubes, Hole Diameter is 18.7mm, Holds 50, Detachable, Karter Scientific 208U2 (Pack of 1)
- SimPure Centrifuge Tubes 15mL, Conical Tubes Sterile 50 PCS, Polypropylene, Leak-Proof Screw Caps, Plastic Container with Graduated and Write Marks, Non-pyrogenic, DNase/RNase Free, Human DNA-Free

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-29*