UNITED SCIENTIFIC SUPPLIES Rubber Stopper, Size 7-1/2, Black
The UNITED SCIENTIFIC SUPPLIES Stopper: Rubber is a black rubber stopper with a size of 7-1/2. It features a bottom diameter of 31 mm, a top diameter of 39 mm, and an overall height of 25 mm, as specified by the…
SKU 3G-OTH-381379
Also listed as: RST7AH2 · RST7A 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 of 7-1/2. It features a bottom diameter of 31 mm, a top diameter of 39 mm, and an overall height of 25 mm, as specified by the manufacturer part number RST7A-H2.
Frequently Asked Questions
What is a UNITED SCIENTIFIC SUPPLIES rubber stopper used for?
This black rubber stopper (size 7-1/2) seals laboratory flasks, test tubes, and bottles to prevent contamination or gas escape. It is commonly used in chemistry, biology, and industrial testing environments where a reliable, non-reactive seal is required.
What are the specifications of the UNITED SCIENTIFIC SUPPLIES rubber stopper RST7A-H2?
The stopper has a size of 7-1/2, a bottom diameter of 31 mm, a top diameter of 39 mm, and an overall height of 25 mm. It is made of black rubber and is manufactured by UNITED SCIENTIFIC SUPPLIES INC under part number RST7A-H2.
Where to buy UNITED SCIENTIFIC SUPPLIES rubber stoppers worldwide?
3G Electric supplies and delivers UNITED SCIENTIFIC SUPPLIES rubber stoppers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure your order arrives at your facility, no matter the location.
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 this UNITED SCIENTIFIC SUPPLIES stopper (size 7-1/2), the top diameter is 39 mm and bottom is 31 mm, ensuring a snug fit for standard laboratory glassware.
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.
