UNITED SCIENTIFIC SUPPLIES Stopper: Rubber, 4 Stopper Size, 20 mm Bottom Dia, 26 mm Top Dia, 25 mm Overall Ht
The UNITED SCIENTIFIC SUPPLIES Stopper: Rubber is a black rubber stopper in Size 4, featuring a 20 mm bottom diameter, 26 mm top diameter, and 25 mm overall height with 2 holes. This product is manufactured by UNITED…
SKU 3G-OTH-381384
Also listed as: RST4H2 · RST4 H2
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The UNITED SCIENTIFIC SUPPLIES Stopper: Rubber is a black rubber stopper in Size 4, featuring a 20 mm bottom diameter, 26 mm top diameter, and 25 mm overall height with 2 holes. This product is manufactured by UNITED SCIENTIFIC SUPPLIES INC under part number RST4-H2.
Frequently Asked Questions
What is a UNITED SCIENTIFIC SUPPLIES rubber stopper used for?
This rubber stopper is used to seal laboratory flasks, test tubes, and other glassware. The 2 holes allow insertion of glass tubing, thermometers, or probes for gas transfer or pressure control. It is suitable for general chemistry, biology, and industrial lab applications.
What are the specifications of the UNITED SCIENTIFIC SUPPLIES Stopper Size 4 with 2 holes?
This black rubber stopper has a Size 4 fit, 20 mm bottom diameter, 26 mm top diameter, and 25 mm overall height. It features 2 holes and is made of rubber. The manufacturer part number is RST4-H2 from UNITED SCIENTIFIC SUPPLIES INC.
Where to buy UNITED SCIENTIFIC SUPPLIES rubber stoppers worldwide?
3G Electric supplies UNITED SCIENTIFIC SUPPLIES rubber stoppers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source the RST4-H2 stopper for your lab needs.
How to select the right rubber stopper size for a flask?
Select a stopper size that matches the flask neck opening. The Size 4 stopper has a 20 mm bottom diameter and 26 mm top diameter, fitting standard lab glassware. Ensure the stopper material (rubber) is compatible with your chemicals and temperature range. Measure the neck inner diameter before ordering.
UNITED SCIENTIFIC SUPPLIES Products
3G Electric supplies UNITED SCIENTIFIC SUPPLIES rubber stoppers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
