--- product_id: 111193664 title: "Conical Centrifuge Tubes 50mL, 25 Pcs Sterile Test Tubes with Screw Cap" price: "R1181" currency: ZAR in_stock: true reviews_count: 10 url: https://www.desertcart.co.za/products/111193664-conical-centrifuge-tubes-50ml-25-pcs-sterile-test-tubes-screw store_origin: ZA region: South Africa --- # Leak-proof screw cap 50mL capacity precision Freeze-resistant to -80℃ Conical Centrifuge Tubes 50mL, 25 Pcs Sterile Test Tubes with Screw Cap **Price:** R1181 **Availability:** ✅ In Stock ## Summary > 🧬 Elevate your lab game with tubes that mean business! ## Quick Answers - **What is this?** Conical Centrifuge Tubes 50mL, 25 Pcs Sterile Test Tubes with Screw Cap - **How much does it cost?** R1181 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/111193664-conical-centrifuge-tubes-50ml-25-pcs-sterile-test-tubes-screw) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust & Reliable:** High purity polypropylene withstands autoclaving at 121℃ and extreme cold - • **Lab-Grade Durability:** Smooth inner surface prevents residue buildup, maintaining sample integrity - • **Leak-Proof Confidence:** Extended screw caps ensure zero sample loss during critical procedures - • **Precision Measurement:** Easy-to-read graduations with ±2% accuracy and large writable area for flawless labeling - • **Sterile & Ready-to-Use:** EO sterilized and DNase/RNase free for contamination-free results ## Overview These 50mL conical centrifuge tubes combine high-purity polypropylene durability with EO sterilization, ensuring contamination-free, leak-proof sample handling. Designed for professional labs, they withstand autoclaving at 121℃ and freezing down to -80℃, featuring precise graduations and a large writable area for seamless workflow. ## Description Conical Centrifuge Tubes 50mL, 25 Pcs Sterile Test Tubes with Screw Cap | Sterile Plastic Tubes with Screw Caps, Polypropylene Container with Graduated and Write-on Spot, Non-Pyrogenic, DN/RNase Free: desertcart.com: Industrial & Scientific Review: Great item. A must for use in the Lab - We use these all the times in our Horse Breeding Lab. Great product. Reliable. Highly reccomend. Review: Good material - Good material, nice quality ## Features - HIGH QUALITY MATERIAL - 50mL conical centrifuge tubes with High purity PP Material and Max.RCF: 9,400, it can Autoclavable at 121℃ and freezable to -80℃. - LEAK-PROOF - 50mL centrifuge tubes have longer length screw caps, which is used to prevent sample leakage and it smooth, flat inner surface, no residual solution. - STERILIZED - Centrifuge tubes 50mL is EO sterilized, non- pyrogenic, DNase/RNase free. The sterility of the centrifuge tubes is guaranteed as long as the outer packaging remains intact. - EASY READ - 50mL centrifuge tubes sterile with easy-to-read black graduations are accurate to ±2%, 2.5mL increments, with a large white marking spot. - WRITING AREA - 50mL conical tubes With a large unerasable frosting white printed writing area provide easy and legible mark, and both the graduations and writing areas are chloroform-resistant. - Note: The product is not capable of sterilization; it is supplied as sterile following ethylene oxide (EO) processing. The centrifuge tube is for laboratory use only. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.6 out of 5 stars 664 Reviews | ## Images ![Conical Centrifuge Tubes 50mL, 25 Pcs Sterile Test Tubes with Screw Cap - Image 1](https://m.media-amazon.com/images/I/81SXfCmYDaL.jpg) ## Available Options This product comes in different **Size, Number Of Items** options. ## Questions & Answers **Q: what are the tube dimensions? what size rack will fit it?** A: Our 15ml centrifuge tubes maximum outer diameter is approx 16.97mm, inner diameter is approx 15mm, cap outer diameter is approx 21.5mm, cap and tube total length is approx 120mm. and our 15 ml tubes can fit 17mm centrifuge tube rack. **Q: What are the physical dimensions of the tube? Looking for 3/4” OD and 4-1/2” length.** A: Our 50ml centrifuge tubes maximum outer diameter is approx 1.15in, inner diameter is approx 1.08in, cap outer diameter is approx 1.37in, cap and tube total length is approx 4.7in. **Q: How secure do the tops fit?** A: The caps are water tight **Q: These melted when autoclaved. Just fyi. Possibly defective batch?** A: Our centrifuge tubes can be autoclavable at 121°30min, temperature is too high may cause centrifuge tube melting, it is recommended not to exceed 121° when sterilization. Hope you can understand.Thanks ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great item. A must for use in the Lab *by N***P on August 2, 2025* We use these all the times in our Horse Breeding Lab. Great product. Reliable. Highly reccomend. ### ⭐⭐⭐⭐⭐ Good material *by K***Y on April 6, 2026* Good material, nice quality ### ⭐⭐⭐⭐⭐ Seem to be great! *by S***. on February 19, 2022* I'm not using these in an actual centrifuge. I bought them for pre-measuring out oxy shock powder for my hot tub. They work wonderfully for this. The lids fit tightly and stay put, graduation markings are solid and easy to read, and they're very inexpensive. This ticks all of the boxes for my needs. ## Frequently Bought Together - Membrane Solutions Conical Centrifuge Tubes 50mL, 25 Pack Sterile Plastic Test Tubes with Screw Caps, Polypropylene Container with Graduated and Write-on Spot, Non-Pyrogenic, DN/RNase Free - Transfer Pipette, 7.0ml Capacity, 3.0ml Graduated, Large Bulb, 155mm, 3.2ml Bulb Draw, Karter Scientific 206H3 (Pack of 100) - AmScope 72 pcs. Blank Microscope Slides, Pre-Cleaned Glass Slides for Microscopes --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/111193664-conical-centrifuge-tubes-50ml-25-pcs-sterile-test-tubes-screw](https://www.desertcart.co.za/products/111193664-conical-centrifuge-tubes-50ml-25-pcs-sterile-test-tubes-screw) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-09-23*