---
product_id: 130735273
title: "50ml Plastic Centrifuge Tubes with Screw Cap, CertBuy 50 Pack Self-Standing Plastic 50ml Test Tube Polypropylene Conical Tubes with Cap, Graduated Marks"
brand: "certbuy"
price: "€ 69.84"
currency: EUR
in_stock: true
reviews_count: 8
category: "Cert Buy"
url: https://www.desertcart.nl/products/130735273-50ml-plastic-centrifuge-tubes-with-screw-cap-certbuy-50-pack
store_origin: NL
region: Netherlands
---

# Graduated marks every 2.5-5ml for precise measurement Low-temp resistant polypropylene for freezing durability 50ml capacity for versatile sample sizes 50ml Plastic Centrifuge Tubes with Screw Cap, CertBuy 50 Pack Self-Standing Plastic 50ml Test Tube Polypropylene Conical Tubes with Cap, Graduated Marks

**Brand:** certbuy
**Price:** € 69.84
**Availability:** ✅ In Stock

## Summary

> 🧬 Elevate your sample game with precision and durability that stands out!

## Quick Answers

- **What is this?** 50ml Plastic Centrifuge Tubes with Screw Cap, CertBuy 50 Pack Self-Standing Plastic 50ml Test Tube Polypropylene Conical Tubes with Cap, Graduated Marks by certbuy
- **How much does it cost?** € 69.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/130735273-50ml-plastic-centrifuge-tubes-with-screw-cap-certbuy-50-pack)

## Best For

- certbuy enthusiasts

## Why This Product

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

## Key Features

- • **Multipurpose Mastery:** Ideal for powders, seeds, pills, and liquids—perfect for lab, industrial, or creative organizational needs.
- • **Leak-Proof Confidence:** Snap-on blue HDPE screw caps provide a secure seal, preventing spills and contamination during transport or storage.
- • **Precision in Every Drop:** Graduated markings in 2.5ml and 5ml increments ensure exact volume control for professional sample handling.
- • **Freeze-Ready Performance:** Engineered to withstand low temperatures for long-term sample preservation without cracking or warping.
- • **Built to Last, Designed to Stand:** Freestanding conical shape with robust polypropylene material offers stability and durability in any lab or field setting.

## Overview

The CertBuy 50 Pack 50ml Plastic Centrifuge Tubes combine high-grade polypropylene construction with precise graduated markings and secure screw caps. Designed for professional sample storage and handling, these self-standing conical tubes resist low temperatures and prevent leaks, making them a top choice for labs and industrial use alike.

## Description

CertBuy 50 Pack Flat Screw Cap Premium Quality Conical Centrifuge Tubes, 50 mL Self-Standing Tubes Plastic Frozen Test Tubes Vial Seal Cap ContainerFeatures: Free-standing conical design. Highly visible white volume graduations. Low temperature, long - term freezing. Snap cap design,not easy to leak. Ideal for sample handling and storage. Features molded graduations in 2.5mL increments from 5 to 10mL and 5mL increments from 10 to 50mL. Supplied with blue HDPE (high density polyethylene) plug-seal srew caps.Specification: Diameter Outside: 25mm / 1.0inch Length: 114mm/4.5inch Closure Color: Blue Capacity: 50ml / 1.69 oz. Material: PP (Polypropylene) Shape: Freestanding with conical bottom Type: Centrifuge Tube

Review: Well built - Outstanding little bottle. We use them for small machine screws and things like that. They hold up well.
Review: Useful fo so many different things. - I am using these in a rather strange way. So I have a bunch of disposable ice gel packs that came with my medication. I didn't want to throw them away and reusing them wasn't idea since they ripped so easily. I wanted to reuse them. I wanted something small and durable that wouldn't break as easily to fill with ice gel. I tested out 20 vials and put them in my cooler and so far so good. Unlike typical ice gel packs, these are small and fill up crevices of my cooler pretty well.

## Features

- Material: PP ( Polypropylene )
- Capacity: 50 ML, Graduated every 5ml and 2.5ml
- Dimension: 1.0 x 4.5inch / 25 x 114mm(DxL)
- Package Included: 50pcs 50ml Plastic Tubes
- Apply to loading solid, powder, seeds, pills, granular objects etc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.6 out of 5 stars 162 Reviews |

## Images

![50ml Plastic Centrifuge Tubes with Screw Cap, CertBuy 50 Pack Self-Standing Plastic 50ml Test Tube Polypropylene Conical Tubes with Cap, Graduated Marks - Image 1](https://m.media-amazon.com/images/I/61dT2POzYaL.jpg)

## Questions & Answers

**Q: are these tubes leak proof when filled with liquids?**
A: They're screw cap and pretty leak proof. I used them to collect 50 water samples locally, kept them in ziplocs with their respective collection survey, and nothing spilled.

**Q: How accurate is the graduation of these tubes?**
A: Maybe the supplier has specs, but I suspect the precision is one of several more appropriate questions. It's not advertised as measuring liquids for quantitative analysis, just "solid, powder, seeds, pills, granular objects" but the volume is given to 1/10th of a milliliter. Being precise about the volume of a seed seems like an oxymoron, whereas powders are not. It will be interesting what answers you get!

**Q: Is the tube and cap pp5? I'm wondering if both can withstand an autoclave.**
A: The description states the blue cap is HDPE and not PP.  HDPE will not withstand the heat in an autoclave.

**Q: Is there a tube rack on amazon available for these tubes?**
A: No specific idea, sorry, but rack is mentioned a lot on the product page. They do stand upright on their own.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well built
*by C***. on October 13, 2025*

Outstanding little bottle. We use them for small machine screws and things like that. They hold up well.

### ⭐⭐⭐⭐⭐ Useful fo so many different things.
*by D***M on June 6, 2021*

I am using these in a rather strange way. So I have a bunch of disposable ice gel packs that came with my medication. I didn't want to throw them away and reusing them wasn't idea since they ripped so easily. I wanted to reuse them. I wanted something small and durable that wouldn't break as easily to fill with ice gel. I tested out 20 vials and put them in my cooler and so far so good. Unlike typical ice gel packs, these are small and fill up crevices of my cooler pretty well.

### ⭐⭐⭐⭐⭐ Great way to store coffee beans
*by A***R on September 4, 2025*

Great cost effective way to store coffee beans. I have used the for a few months now without any negative issues. Stores between 15-18g of beans depending on the bean. I have airtight canister and fill it with pre measured doses so I can just grind and make without lots of measuring.

## Frequently Bought Together

- 50ml Plastic Centrifuge Tubes with Screw Cap, CertBuy 50 Pack Self-Standing Plastic 50ml Test Tube Polypropylene Conical Tubes with Cap, Graduated Marks
- 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
- Test Tube Rack, Centrifuge Tube Holder (2 Pack - Blue and Orange) for 10ml, 15ml, 50ml, Detachable Plastic Stand, 28 Well

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-26*