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Why Choose StonyLab?
1. The StonyLab means high-quality products for reasonable prices.
2. We boast excellent customer service with a high satisfaction rating, with our team of representatives ready to assist you Monday to Friday, from 9:30AM to 5:30PM Eastern Time.
3. We pack and ship your orders directly from our US-based warehouse within 24 business hours, and tracking information will be provided to you as soon as it's available.
Fácil montagem, bonito
Reviewed in Spain on February 8, 2024
Carl
Reviewed in the United States on October 29, 2022
These come in super handy, continually. Not just for flasks, either - I've had to stopper various female joints due to mishap, poor planning, or just to prevent leakage while switching flasks or between uses of an addition funnel without a stopcock.These stoppers are nice and durable and the penny head means that the diameter is no larger than the joint they fit, so they stay pretty well out of the way. Pretty sure i can use them with 29/*, too, which is nice.
Cliente
Reviewed in Italy on September 27, 2019
Perfetti sia nella conicità che nella fattura del tappo con un ottimo imballaggio
Fredrick Lee
Reviewed in the United States on May 11, 2019
Finely made glass stoppers for the 24/40 taper, these are precision ground, symmetrical, and the glass is free of ripples or bubbles. And the price is right. Great for leaving a solution to rest for a few hours or overnight but not for more than a few days as the stoppers will eventually freeze.
El Cap-E-tan
Reviewed in the United States on March 3, 2019
They fit perfectly 👌!! And got to me fast!!!!
Erick Barroeta
Reviewed in the United States on April 10, 2019
Glass was good quality and provided a great seal for our 24/40 joints
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