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StonyLab Solid Rubber Stoppers, 10-Pack 4# White Tapered Lab Seal Rubber Stopper, Fits All StonyLab Glassware with 24/40 Joint

Free shipping on orders over $29.99

$14.99

$ 6 .99 $6.99

In Stock

About this item

  • Our StonyLab White Rubber Stoppers provide exceptional seal for many applications; Fits all StonyLab flat bottom boiling flask, recovery flask rotary evaporator flask, round bottom flask, conical separatory funnel, narrow mouth erlenmeyer flasks
  • Please read the dimension description image carefully before making a decision (might have 1mm measurement error)
  • Exhibit excellent resilience and retain pliability over a long period
  • Please note these rubber stoppers are NOT food grade
  • StonyLab ensures high quality products and premium customer service; If received damaged, please contact us immediately; We will solve it until satisfied


SKU: XL-815533
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.

Description
Our StonyLab White Rubber Stoppers provide exceptional seal for many applications. Fits all StonyLab flat bottom boiling flask, recovery flask rotary evaporator flask, round bottom flask, conical separatory funnel, narrow mouth erlenmeyer flasks
Please read the dimension description image carefully before making a decision (might have 1mm measurement error)
Exhibit excellent resilience and retain pliability over a long period
Please note these rubber stoppers are NOT food grade
StonyLab ensures high quality products and premium customer service. If received damaged, please contact us immediately. We will solve it until satisfied


Detailed
Reviewed in the United States on February 24, 2024
They’ve sat in a carboy for a year while I aged my wine. They stuck to the glass and couldn’t be removed. Several of them broke in half.
hhuqwena
Reviewed in Poland on October 5, 2024
Opis niezgodny z wysyłką. Na stronie piszą o 50 sztukach w różnych rozmiarach od #000 do #7 ale wysyłają 10 sztuk w rozmiarze #3.
Jacqui bancroft
Reviewed in the United Kingdom on October 12, 2024
They were just as described
Gerrit Bilkes
Reviewed in Canada on April 29, 2024
I use these stoppers to close one-gallon glass bottles. You can get the right size of stopper for varying bottle size openings.
Robdu972
Reviewed in France on July 31, 2023
Idéal pour une Berkey quand le filtre est cassé.
Dusty S.
Reviewed in the United States on May 9, 2023
I used them to plug the hole in a clay pot to make ollas to water my garden. They are working great so far.
backi
Reviewed in Germany on September 2, 2022
Passgenau und gutes Material
steve k
Reviewed in the United States on December 14, 2022
Second purchase from same manufacturer and different diameter but clearly both marked as same size. Consistency is key for any business and because of their inconsistent manufacturing I can’t ship holiday orders… Will have to re order larger size and wait forever to get product. bad link for contact info as well…
Pat
Reviewed in the United States on November 27, 2022
Have a large collection of Essential Oils, the plastic caps on many of them were cracked and leaked. These stoppers are a perfect fit for the bottles and we no longer need to worry about spills.Affordable and easy to use, the are great for our needs. We’ll be buying more to replace all the caps and probably get some of the larger ones for our spices.
Customer
Reviewed in the United States on October 25, 2022
used for speargun plugs
Daniel Nolan
Reviewed in the United States on February 16, 2021
Works great!!!
Neek
Reviewed in the United States on August 20, 2020
Purchased for my 5 gallon glass carboys into which I harvest local spring water. Also fits my smaller three gallon glass carboy. Perfect fit for both. Exactly what I was looking for. Very grateful for my water source.
Martin S.
Reviewed in the United States on July 5, 2020
They arrived and worked. Was not sure if they were the right size, however, once they arrived they will work fine. I drilled my own holes in the corks to accommodate an off size feeder tube for our home made Bird Feeder.
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