We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

CHEMGLASS Stopper: Polyethylene, 24/25/24/40 Stopper Size, 2 in Overall Ht, Yellow - Plastic Stoppers
CHEMGLASSPlastic Stoppers

CHEMGLASS Stopper: Polyethylene, 24/25/24/40 Stopper Size, 2 in Overall Ht, Yellow

The CHEMGLASS Stopper: Polyethylene (SKU 3G-OTH-387345) is a yellow plastic stopper made from polyethylene. It features a 24/40 stopper size and a 2-inch overall height, with zero holes. This product is identified by…

SKU 3G-OTH-387345

Also listed as: CG302103 · CG 3021 03

Brand
CHEMGLASS
Item
Stopper: Polyethylene, 24/25/24/40 Stopper Size, 2 in Overall Ht, Yellow
Category
Plastic Stoppers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

CHEMGLASS
Manufacturer Part Number
CG-3021-03
Type
Yellow
Material
Polyethylene
Color
Yellow
Holes
0
Overall Ht
2 in
Stopper Size
24/40

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

CHEMGLASS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHEMGLASS Stopper: Polyethylene (SKU 3G-OTH-387345) is a yellow plastic stopper made from polyethylene. It features a 24/40 stopper size and a 2-inch overall height, with zero holes. This product is identified by manufacturer part number CG-3021-03.

Frequently Asked Questions

What is a CHEMGLASS polyethylene stopper used for?

A CHEMGLASS polyethylene stopper is used to seal laboratory glassware such as flasks and test tubes. Its 24/40 size fits standard ground-glass joints, and the solid design (zero holes) provides an airtight closure for mixing or storage applications.

What are the specifications of the CHEMGLASS CG-3021-03 stopper?

The CHEMGLASS CG-3021-03 stopper is made of yellow polyethylene with a 24/40 stopper size and a 2-inch overall height. It has zero holes, making it a solid stopper. The manufacturer part number is CG-3021-03, and the SKU is 21UA05.

Where to buy CHEMGLASS stoppers in worldwide?

3G Electric supplies CHEMGLASS stoppers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver the CG-3021-03 polyethylene stopper to your facility. Contact us for availability and lead time.

How to select the right CHEMGLASS stopper size?

To select the right CHEMGLASS stopper, match the stopper size (e.g., 24/40) to the ground-glass joint of your lab glassware. The 2-inch overall height and solid polyethylene construction suit standard sealing needs. Always verify joint dimensions before ordering.

Used in

Common applications for CHEMGLASS
Pharmaceutical quality control — CHEMGLASS NMR tubes (C-S-5-500-7A) for structural analysis of active compounds.
Environmental sample storage — CHEMGLASS amber vials (CV-1055-1232) for light-sensitive water or soil extracts.
Organic synthesis — CHEMGLASS distilling flasks (CG-1512-59) for solvent purification and reaction setups.
Laboratory apparatus assembly — CHEMGLASS clamps (CG-9205-04) for securing condensers and flasks on support frames.
Sample preparation for chromatography — CHEMGLASS vials (CG-4900-06) with PTFE closures for HPLC or GC autosamplers.
Mixing and homogenization — CHEMGLASS PTFE stirring bars (CG-2005-30) for magnetic stirring in beakers or flasks.

CHEMGLASS Products

3G Electric supplies CHEMGLASS plastic stoppers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Stopper: Polyethylene, 29/26/29/42 Stopper Size, 3.5 in Overall Ht, Yellow, 0 Holes (MPN CG-3021-04)
CHEMGLASS
Stopper: Polyethylene, 29/26/29/42 Stopper Size, 3.5 in Overall Ht, Yellow, 0 Holes (MPN CG-3021-04)
Stopper: PTFE, 22 Stopper Size, 1 in Overall Ht, Yellow, 0 Holes, 1 Stoppers Included (MPN CG-3020-A-05)
CHEMGLASS
Stopper: PTFE, 22 Stopper Size, 1 in Overall Ht, Yellow, 0 Holes, 1 Stoppers Included (MPN CG-3020-A-05)
Stopper: PTFE, 19 Stopper Size, 2 in Overall Ht, Green, 0 Holes, 1 Stoppers Included (MPN CG-3020-A-04)
CHEMGLASS
Stopper: PTFE, 19 Stopper Size, 2 in Overall Ht, Green, 0 Holes, 1 Stoppers Included (MPN CG-3020-A-04)
Stopper: PTFE, 45/50 Stopper Size, 2.75 in Overall Ht, Black, 0 Holes, 1 Stoppers Included (MPN CG-3002-L-45)
CHEMGLASS
Stopper: PTFE, 45/50 Stopper Size, 2.75 in Overall Ht, Black, 0 Holes, 1 Stoppers Included (MPN CG-3002-L-45)

More from CHEMGLASS

View all CHEMGLASS parts
Stopper: Polyethylene, 19/22 Stopper Size, 2.25 in Overall Ht, Yellow, 0 Holes (MPN CG-3021-02)
CHEMGLASS
Stopper: Polyethylene, 19/22 Stopper Size, 2.25 in Overall Ht, Yellow, 0 Holes (MPN CG-3021-02)
Stopper: PTFE, 13 Stopper Size, 1.25 in Overall Ht, Orange, 0 Holes, 1 Stoppers Included (MPN CG-3020-A-02)
CHEMGLASS
Stopper: PTFE, 13 Stopper Size, 1.25 in Overall Ht, Orange, 0 Holes, 1 Stoppers Included (MPN CG-3020-A-02)
Stopper: PTFE, 24/40 Stopper Size, 1.25 in Overall Ht, Black, 0 Holes, 1 Stoppers Included (MPN CG-3002-L-24)
CHEMGLASS
Stopper: PTFE, 24/40 Stopper Size, 1.25 in Overall Ht, Black, 0 Holes, 1 Stoppers Included (MPN CG-3002-L-24)
Stopper: PTFE, 9 Stopper Size, 0.5 in Overall Ht, Black/White, 0 Holes, 1 Stoppers Included (MPN CG-3020-A-01)
CHEMGLASS
Stopper: PTFE, 9 Stopper Size, 0.5 in Overall Ht, Black/White, 0 Holes, 1 Stoppers Included (MPN CG-3020-A-01)
Stopper: PTFE, 16 Stopper Size, 1.25 in Overall Ht, Blue/White, 0 Holes, 1 Stoppers Included (MPN CG-3020-A-03)
CHEMGLASS
Stopper: PTFE, 16 Stopper Size, 1.25 in Overall Ht, Blue/White, 0 Holes, 1 Stoppers Included (MPN CG-3020-A-03)
Stopper: Polyethylene, 14/20 Stopper Size, 3.25 in Overall Ht, Yellow, 0 Holes (MPN CG-3021-01)
CHEMGLASS
Stopper: Polyethylene, 14/20 Stopper Size, 3.25 in Overall Ht, Yellow, 0 Holes (MPN CG-3021-01)
Stopper: PTFE, 27 Stopper Size, 1.25 in Overall Ht, Red/White, 0 Holes, 1 Stoppers Included (MPN CG-3020-A-06)
CHEMGLASS
Stopper: PTFE, 27 Stopper Size, 1.25 in Overall Ht, Red/White, 0 Holes, 1 Stoppers Included (MPN CG-3020-A-06)
Stopper: PTFE, 29/42 Stopper Size, 1.5 in Overall Ht, Black, 0 Holes, 1 Stoppers Included (MPN CG-3002-L-29)
CHEMGLASS
Stopper: PTFE, 29/42 Stopper Size, 1.5 in Overall Ht, Black, 0 Holes, 1 Stoppers Included (MPN CG-3002-L-29)