Science folks and lab enthusiasts, this Adamas-Beta solid glass stopper is exactly what you need for your 14/20 outer joint glassware! If you're tired of messy evaporation or contamination in your experiments, this stopper has got you covered.
First off, it's made from borosilicate glass - the same tough, heat-resistant material used in professional lab equipment. This isn't some cheap glass that'll crack under temperature changes. The heavy-duty design means you can use it again and again without worrying about wear and tear.
The 14/20 ground joint size is super common for reagent bottles and other lab glassware, so chances are it'll fit right into your existing setup. The closed bottom design provides a complete seal, keeping your samples safe and uncontaminated.
What's really handy are the side grooves that prevent slippage. No more fumbling with slippery glass when you're trying to seal a bottle quickly. The stopper rotates smoothly and cleans up easily too - just give it a quick rinse and it's ready for the next use.
Adamas-Beta is known for their quality and customer service, so you can trust that you're getting a reliable product. Whether you're setting up a home lab, teaching students, or just need replacement stoppers for your professional workspace, this solid glass stopper delivers professional performance.
It's perfect for chemistry experiments, storage solutions, or any situation where you need a reliable seal on your glassware. The simple, functional design just works exactly how you need it to.
Having a few of these on hand means you'll always be prepared when you need to seal up your glass containers properly. No more makeshift solutions that don't quite work right!
Free 30-day returns 
Free 30-day returns
