UNITED SCIENTIFIC SUPPLIES Rubber Stopper Size 9, 2 Holes, Black
The UNITED SCIENTIFIC SUPPLIES Stopper: Rubber is a black rubber stopper with a size 9, featuring a 37 mm bottom diameter, 45 mm top diameter, and 25 mm overall height. It includes 2 holes and is manufactured by…
SKU 3G-OTH-381376
Also listed as: RST9H2 · RST9 H2
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.
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Product Description
The UNITED SCIENTIFIC SUPPLIES Stopper: Rubber is a black rubber stopper with a size 9, featuring a 37 mm bottom diameter, 45 mm top diameter, and 25 mm overall height. It includes 2 holes and is manufactured by UNITED SCIENTIFIC SUPPLIES INC under part number RST9-H2.
Frequently Asked Questions
What is a UNITED SCIENTIFIC SUPPLIES rubber stopper size 9 with 2 holes used for?
This black rubber stopper (size 9, 45 mm top dia, 37 mm bottom dia, 25 mm height) seals laboratory flasks, test tubes, or bottles. The 2 holes allow insertion of glass tubing, thermometers, or probes for gas transfer or vacuum applications in chemistry and biology labs.
What are the specifications of the UNITED SCIENTIFIC SUPPLIES RST9-H2 rubber stopper?
The RST9-H2 is a size 9 black rubber stopper from UNITED SCIENTIFIC SUPPLIES INC. It has a 45 mm top diameter, 37 mm bottom diameter, 25 mm overall height, and 2 holes. Material is rubber. It is designed for standard laboratory sealing and access.
Where to buy UNITED SCIENTIFIC SUPPLIES rubber stoppers worldwide?
3G Electric supplies and delivers the UNITED SCIENTIFIC SUPPLIES RST9-H2 rubber stopper worldwide. We handle full logistics and customs clearance for global orders, ensuring you receive genuine lab consumables for your facility.
How to select the right rubber stopper size for a flask?
Measure the inside diameter of your flask neck. The stopper's bottom diameter (37 mm for size 9) should be slightly larger than the neck opening to create a tight seal. For multiple inserts, choose a stopper with the correct number of holes (2 holes for this model).
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.
