OEM APPROVED VENDOR SBR Rubber Stopper

The APPROVED VENDOR SBR rubber stopper is used to seal laboratory flasks, test tubes, and other containers. Its SBR rubber material provides good chemical resistance and flexibility for a tight fit. Common applications include general lab work, sample storage, and industrial sealing where a reliable, reusable stopper is needed.

The APPROVED VENDOR stopper 5-1H is made of black SBR rubber, size 5, with a bottom diameter of 23 mm, top diameter of 27 mm, and overall height of 25 mm. It meets ASTM D2000 standards for rubber material classification. The manufacturer part number is 5-1H.

You can source APPROVED VENDOR stoppers worldwide through 3G Electric, a global industrial equipment distributor since 1990. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the 5-1H stopper or other sizes.

To select the correct rubber stopper, measure the inner diameter of your flask opening. The stopper's top diameter should be slightly larger than the opening, and the bottom diameter slightly smaller, to create a seal. For the APPROVED VENDOR size 5 stopper, the top diameter is 27 mm and bottom is 23 mm, suitable for openings around 23–27 mm.