UNITED SCIENTIFIC SUPPLIES Rubber Stopper, Size 8-1/2, Black
The UNITED SCIENTIFIC SUPPLIES Stopper: Rubber is a black rubber stopper with a size of 8-1/2. It features a bottom diameter of 36 mm, a top diameter of 43 mm, and an overall height of 25 mm. This product is…
SKU 3G-OTH-381377
Also listed as: RST8AH2 · RST8A 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
Need installation or engineering help?
Ask a question
Product Description
The UNITED SCIENTIFIC SUPPLIES Stopper: Rubber is a black rubber stopper with a size of 8-1/2. It features a bottom diameter of 36 mm, a top diameter of 43 mm, and an overall height of 25 mm. This product is manufactured under part number RST8A-H2.
Frequently Asked Questions
What is a UNITED SCIENTIFIC SUPPLIES rubber stopper used for?
This black rubber stopper (size 8-1/2) is used to seal laboratory flasks, test tubes, and other glassware to prevent contamination or gas escape. It is commonly applied in chemistry, biology, and industrial testing environments where a secure, non-reactive seal is needed.
What are the specifications of the UNITED SCIENTIFIC SUPPLIES rubber stopper RST8A-H2?
The stopper has a size of 8-1/2, a bottom diameter of 36 mm, a top diameter of 43 mm, and an overall height of 25 mm. It is made of black rubber by UNITED SCIENTIFIC SUPPLIES INC, with manufacturer part number RST8A-H2.
Where to buy UNITED SCIENTIFIC SUPPLIES rubber stoppers worldwide?
3G Electric supplies the UNITED SCIENTIFIC SUPPLIES rubber stopper RST8A-H2 worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time.
How to select the right rubber stopper size for a flask?
Measure the inner diameter of your flask neck and match it to the stopper's top and bottom diameters. For the RST8A-H2, the top diameter is 43 mm and bottom is 36 mm. Ensure the stopper fits snugly without forcing. Consult a sizing chart or contact 3G Electric for guidance.
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.
