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APPROVED VENDOR Stopper: Natural Rubber, 7 Stopper Size, 30 mm Bottom Dia, 37 mm Top Dia - Rubber Stoppers
APPROVED VENDORRubber Stoppers

APPROVED VENDOR Stopper: Natural Rubber, 7 Stopper Size, 30 mm Bottom Dia, 37 mm Top Dia

The APPROVED VENDOR Stopper: Natural Rubber is a black rubber stopper made from natural rubber. It has a Stopper Size of 7, with a bottom diameter of 30 mm, a top diameter of 37 mm, and an overall height of 25 mm…

SKU 3G-OTH-381343

Brand
APPROVED VENDOR
Item
Stopper: Natural Rubber, 7 Stopper Size, 30 mm Bottom Dia, 37 mm Top Dia
Category
Rubber Stoppers
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
RST7-S
Type
Black
Material
Natural Rubber
Color
Black
Top Dia
37 mm
Bottom Dia
30 mm
Overall Ht
25 mm
Stopper Size
7
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APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Stopper: Natural Rubber is a black rubber stopper made from natural rubber. It has a Stopper Size of 7, with a bottom diameter of 30 mm, a top diameter of 37 mm, and an overall height of 25 mm. This product is identified by manufacturer part number RST7-S.

Frequently Asked Questions

What is the APPROVED VENDOR natural rubber stopper RST7-S used for?

This black natural rubber stopper is used to seal laboratory glassware, flasks, and test tubes. Its size 7 design with a 30 mm bottom diameter and 37 mm top diameter provides a tight fit for standard openings, preventing leaks and contamination in chemical or biological applications.

What are the specifications of the APPROVED VENDOR stopper RST7-S?

The APPROVED VENDOR stopper RST7-S is made of natural rubber in black. It has a stopper size of 7, a bottom diameter of 30 mm, a top diameter of 37 mm, and an overall height of 25 mm. The manufacturer part number is RST7-S.

Where to buy the APPROVED VENDOR stopper RST7-S in worldwide?

3G Electric supplies the APPROVED VENDOR stopper RST7-S to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us to source this natural rubber stopper for your laboratory or industrial needs.

How to select the right size rubber stopper for a flask?

Measure the inner diameter of your flask opening. The stopper's bottom diameter should be slightly larger than the opening for a secure seal. For the APPROVED VENDOR size 7 stopper, the 30 mm bottom diameter fits openings around 28-30 mm. Always verify dimensions before ordering.

Used in

Common applications for APPROVED VENDOR
Laboratory sampling — APPROVED VENDOR clear wide mouth glass bottles for collecting and storing liquid samples in non-sterile environments.
Steam heating maintenance — APPROVED VENDOR forged brass radiator valves for regulating steam flow in commercial building heating systems.
High-pressure cleaning — APPROVED VENDOR turbo spray nozzles for pressure washers used in industrial equipment cleaning up to 6,000 psi.
Cleanroom operations — APPROVED VENDOR vinyl task chairs for seating in ISO 5 classified manufacturing or assembly areas.
General sealing — APPROVED VENDOR natural rubber stoppers for closing laboratory flasks or test tubes in educational or research settings.
Tamper-evident security — APPROVED VENDOR brass lead and wire seals for securing utility meters, cargo containers, or access panels.

APPROVED VENDOR Products

3G Electric supplies APPROVED VENDOR rubber stoppers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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