--- 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: "381 zł" currency: PLN in_stock: true url: https://www.desertcart.pl/products/309852919-stonylab-rotary-evaporator-bump-trap-24-40-outer-upper-joint store_origin: PL region: Poland --- # 250 ml high-capacity trap 24/40 standard taper joints Borosilicate glass, heat resistant to 200°C stonylab Rotary Evaporator Bump Trap 24/40 Outer Upper Joint, 24/40 Standard Taper Inner Lower Joint, 250 ml **Brand:** stonylab **Price:** 381 zł **Availability:** ✅ In Stock ## Summary > 🧪 Elevate your rotary evaporation game—trap the splash, not the progress! ## 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?** 381 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/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 - • **Peace of Mind Warranty:** Backed by a 1-year limited warranty—quality you can trust, support you can count on. - • **Splash-Proof Precision:** Prevents solvent splashing and contamination for cleaner, safer evaporation. - • **Universal Compatibility:** Standard 24/40 upper and lower joints fit seamlessly with most rotary evaporators. - • **Generous 250 ml Capacity:** Ample volume to handle solvent vapor without interruption or overflow. - • **Durable Borosilicate Build:** Heavy-duty glass withstands up to 200°C, ensuring long-lasting lab performance. ## Overview The StonyLab Rotary Evaporator Bump Trap features a 250 ml borosilicate glass chamber with standard 24/40 taper joints, designed to prevent solvent splashing and contamination during rotary evaporation. Built for durability with heat resistance up to 200°C and backed by a 1-year warranty, it’s an essential upgrade for any professional lab setup. ## 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 ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | StonyLab Scientific | | Part number | RotaryEvaporator-Trap-24/40-250ml | | Item Weight | 300 g | | Package Dimensions | 23 x 11.6 x 11.5 cm; 300 g | | Manufacturer reference | RotaryEvaporator-Trap-24/40-250ml | | Size | 250 ml | | Colour | 250 ml | | Material | Glass | | Batteries included? | No | | Batteries Required? | No | ## 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/41vNd0MAQdL.jpg) ## 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.pl/products/309852919-stonylab-rotary-evaporator-bump-trap-24-40-outer-upper-joint](https://www.desertcart.pl/products/309852919-stonylab-rotary-evaporator-bump-trap-24-40-outer-upper-joint) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-24*