---
product_id: 458679094
title: "stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 24/40 Standard Taper Inner Lower Joint, 250 ml"
brand: "stonylab"
price: "₪287"
currency: ILS
in_stock: true
url: https://www.desertcart.co.il/products/458679094-stonylab-rotary-evaporator-bump-trap-24-40-outer-upper-joint
store_origin: IL
region: Israel
---

# 250 ml capacity Reusable design Max temp 200°C stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 24/40 Standard Taper Inner Lower Joint, 250 ml

**Brand:** stonylab
**Price:** ₪287
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Lab Game with 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?** ₪287 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/458679094-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

- • **1-Year Warranty:** Comes with a limited warranty for peace of mind and customer satisfaction.
- • **Prevent Contamination:** Designed to keep your evaporation flask free from splashes and contaminants.
- • **High-Temperature Resistance:** Withstands temperatures up to 200°C for versatile applications.
- • **Standard Joint Compatibility:** Features 24/40 outer and inner joints for universal fit with most rotary evaporators.
- • **Heavy-Duty Borosilicate Glass:** Crafted from durable borosilicate glass for long-lasting performance.

## Overview

The Stonylab Rotary Evaporator Bump Trap is an essential accessory for any laboratory, designed to prevent contamination during the rotary evaporation process. With a 250 ml capacity and durable borosilicate glass construction, it withstands high temperatures and ensures reliable performance. Compatible with standard 24/40 joints, this reusable bump trap is backed by a 1-year warranty, making it a smart investment for professionals.

## Description

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

## 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

## Product Details

- **Material:** Glass
- **Capacity:** 250 Milliliters
- **Brand:** stonylab
- **Bottom Shape:** Round
- **UPC:** 843798170186

## 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/41vNd0MAQdL.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

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**Shop now:** [https://www.desertcart.co.il/products/458679094-stonylab-rotary-evaporator-bump-trap-24-40-outer-upper-joint](https://www.desertcart.co.il/products/458679094-stonylab-rotary-evaporator-bump-trap-24-40-outer-upper-joint)

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-02-21*