---
product_id: 309852919
title: "stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 24/40 Standard Taper Inner Lower Joint, 250 ml"
brand: "stonylab"
price: "SAR 321"
currency: SAR
in_stock: true
category: "Stonylab"
url: https://www.desertcart.com.sa/products/309852919-stonylab-rotary-evaporator-bump-trap-24-40-outer-upper-joint
store_origin: SA
region: Saudi Arabia
---

# 24/40 standard taper joints withstands up to 200°C 250 ml capacity stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 24/40 Standard Taper Inner Lower Joint, 250 ml

**Brand:** stonylab
**Price:** SAR 321
**Availability:** ✅ In Stock

## Summary

> 🧪 Elevate your lab game with splash-proof precision!

## Quick Answers

- **What is this?** stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 24/40 Standard Taper Inner Lower Joint, 250 ml by stonylab
- **How much does it cost?** SAR 321 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/309852919-stonylab-rotary-evaporator-bump-trap-24-40-outer-upper-joint)

## Best For

- stonylab enthusiasts

## Why This Product

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

## Key Features

- • **Universal Fit:** Standard 24/40 joints ensure seamless compatibility
- • **Splash-Free Precision:** Prevents solvent splashing for cleaner, safer evaporation
- • **Peace of Mind Warranty:** 1-year limited warranty with responsive customer support
- • **Durable Borosilicate Glass:** Heavy-duty, heat-resistant design built to last
- • **Optimized Solvent Recovery:** Keeps contaminants out, maximizing purity and yield

## Overview

The Stonylab Rotary Evaporator Bump Trap is a 250 ml borosilicate glass accessory designed to prevent solvent splashing and contamination during rotary evaporation. Featuring standard 24/40 taper joints and heat resistance up to 200°C, it ensures durability and compatibility for professional lab environments, backed by a 1-year limited warranty.

## Description

Product Description More Choices Rotary Evaporator Adapter

## Features

- Used between vapor tube and evaporation flask on rotary evaporator to prevent material splashing and contaminants from flowing into the evaporation flask during rotary evaporation of solvents
- Rotary evaporator bump trap
- 250 ml capacity; Upper joint: 24/40; lower joint: 24/40
- Borosilicate glass, heavy duty design and reusable; maximum withstand temperature 200°C
- Warranty: 1-year limited warranty; if received damaged, please contact us immediately; we will solve it until satisfied

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08R3NVMZ7 |
| Best Sellers Rank | 198,719 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 411 in Lab Evaporation & Drying Equipment |
| Bottom Shape | Round |
| Bottom shape | Round |
| Brand | stonylab |
| Capacity | 250 ml |
| Country Of Origin | China |
| Customer Reviews | 4.8 out of 5 stars 7 Reviews |
| Global Trade Identification Number | 00843798170186 |
| Graduation Interval | 250 Millilitres |
| Graduation interval | 250 Millilitres |
| Manufacturer | StonyLab Scientific |
| Manufacturer Part Number | RotaryEvaporator-Trap-24/40-250ml |
| Material | Glass |
| Material Type | Glass |
| UPC | 843798170186 |
| Unit Count | 1.0 count |

## Product Details

- **Material:** Glass
- **Capacity:** 250 Millilitres
- **Brand:** stonylab
- **Bottom shape:** Round
- **Graduation interval:** 250 Millilitres
- **UPC:** 843798170186
- **Global Trade Identification Number:** 00843798170186
- **Manufacturer:** StonyLab Scientific

## Images

![stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 24/40 Standard Taper Inner Lower Joint, 250 ml - Image 1](https://m.media-amazon.com/images/I/51szHBZ0ONL.jpg)
![stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 24/40 Standard Taper Inner Lower Joint, 250 ml - Image 2](https://m.media-amazon.com/images/I/51G3DB9lCaL.jpg)
![stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 24/40 Standard Taper Inner Lower Joint, 250 ml - Image 3](https://m.media-amazon.com/images/I/61iB9VKNsQL.jpg)
![stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 24/40 Standard Taper Inner Lower Joint, 250 ml - Image 4](https://m.media-amazon.com/images/I/61gMKM77mDL.jpg)
![stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 24/40 Standard Taper Inner Lower Joint, 250 ml - Image 5](https://m.media-amazon.com/images/I/713xdAiMzTL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does the trapped liquid drain back? I cannot see any drain holes in the inner column for return to the boiling flask**
A: Dear Customer,
Yes, there is a hole in the inner column. Here is the image: https://s3.amazonaws.com/us-manageimages/c8788220-5d6b-4760-97ab-15033df9e47a_ProductImage_MAIN?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20200623T014450Z&X-Amz-SignedHeaders=host&X-Amz-Expires=129600&X-Amz-Credential=AKIA3IQPFAWYJLBVZNYV%2F20200623%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=ecb36837537d7e10312dfc45f88b6bc0c29f4a8425e4d5794d4faea74512da98
Thanks, Lizzy L

**Q: Whats the purpose of this attachment and what difference between does it makes?**
A: This is placed between the evaporation flask and vapor tube on a rotary evaporator. When heat/vacuum is applied, occasionally the solvent mixture will violently boil or “bump.” This glassware prevents the solvent mixture from entering the condenser, prevent contamination of the instrument in places that are difficult to clean, and improves overall yield by allowing the solvent mixture to drain back into the evaporation flask. I have never used a rotary evaporator without some sort of bump trap and highly recommend every lab with a rotary evaporator invest in at least two of these.

**Q: Size please in mm please? thanks**
A: Dear customer,
It's 24/40 mm 
Thanks, J&D Tech

## Frequently Bought Together

- stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 24/40 Standard Taper Inner Lower Joint, 250 ml
- stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 24/40 Standard Taper Inner Lower Joint, 100 ml
- stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 14/20 Standard Taper Inner Lower Joint, 100 ml

---

## 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.com.sa/products/309852919-stonylab-rotary-evaporator-bump-trap-24-40-outer-upper-joint](https://www.desertcart.com.sa/products/309852919-stonylab-rotary-evaporator-bump-trap-24-40-outer-upper-joint)

---

*Product available on Desertcart Saudi Arabia*
*Store origin: SA*
*Last updated: 2026-07-08*