rubber stopper red 1x hole bottom 21,00 top 27,00 height 30mm

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Product code: 03-101 1221

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Description

Red rubber stopper with one hole, sized with a bottom diameter of 21.00 mm, top diameter of 27.00 mm, and height of 30 mm, is designed to securely seal laboratory glassware while allowing for a single tubing or probe insertion.

Manufactured from flexible and chemically resistant red rubber, the stopper ensures a tight, leak-proof seal in various flasks, bottles, and containers. The pre-formed central hole is suitable for use with glass or plastic tubing, enabling applications such as gas exchange, fluid delivery, or aeration.

Key features:
– Tapered profile for adaptable, snug fit
– Resistant to aqueous solutions, mild chemicals, and alcohols
– Reusable and suitable for standard lab conditions

Perfect for controlled experimental setups, closed systems, and lab-scale fluid or gas handling.

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