UNITED SCIENTIFIC SUPPLIES Stopper: Rubber, 2 Stopper Size, 16 mm Bottom Dia, 20 mm Top Dia, 25 mm Overall Ht
The UNITED SCIENTIFIC SUPPLIES Stopper: Rubber is a black rubber stopper with a Stopper Size of 2, featuring two holes. It has a bottom diameter of 16 mm, a top diameter of 20 mm, and an overall height of 25 mm. This…
SKU 3G-OTH-381320
Also listed as: RST2H2 · RST2 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 with a Stopper Size of 2, featuring two holes. It has a bottom diameter of 16 mm, a top diameter of 20 mm, and an overall height of 25 mm. This product is identified by manufacturer part number RST2-H2.
Frequently Asked Questions
What is a UNITED SCIENTIFIC SUPPLIES rubber stopper used for?
This black rubber stopper with two holes is used to seal laboratory flasks, test tubes, or bottles while allowing insertion of glass tubing, thermometers, or probes. It is common in chemistry, biology, and industrial labs for creating airtight or vented connections.
What are the specifications of the UNITED SCIENTIFIC SUPPLIES rubber stopper RST2-H2?
The stopper has a Stopper Size of 2, a bottom diameter of 16 mm, a top diameter of 20 mm, and an overall height of 25 mm. It is made of black rubber with two holes. The manufacturer part number is RST2-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 since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on the RST2-H2 stopper.
How to select the right rubber stopper size for a flask?
Measure the inner diameter of your flask neck. The stopper's top diameter (20 mm) should be slightly larger than the neck opening, and the bottom diameter (16 mm) should fit snugly inside. For two-hole stoppers like this RST2-H2, ensure your tubing or probes match the hole size.
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.
