Size 4 White Silicone Rubber Stoppers are tapered Rubber Stoppers that will seal many kinds of containers, lab vials and other openings. Manufactured from Silicone Rubber. Suitable for many high-temperature industrial applications.
They work as stoppers should, but more importantly, service is fabulous; fast, friendly, accurately filled orders, every time
Cathryn C, Somerset, NJ - 7/15/2019
Jon O, Laguna Niguel, CA - 7/13/2019
Just what a was looking for.
Durable, reasonably priced, fast shipping. If I need more stoppers, I know where to go.
Edward, K, New Jersey - 6/17/2019
#4 rubber stoppers
Great product, works well, fast delivery
Fred C, North Carolina - 4/28/2019
I ordered the #1 for our design application and just in case we had to increase the hole size ordered the #4 also. The #1's fir our design perfectly and will use the #4 on our other project later on.
Top Flight Company with Hyper-Sonic shipping.
The topper on these stoppers is that they are located in Texas = Excellent
Dan T, Texas - 2/20/2019
High quality product! Just what I was looking for.
Eric H., New York - 2/12/2019
Much better than expected
Ordering was no hassle, prices were very reasonable, Shipped in a timely fashion, received sooner than expected. A class act!
Steve K, Florida - 1/17/2019
Nice made, they do exactly what they are supposed to do.
G K, NY - 12/24/2018
Great Quality Product
Great Quality Product!
Marco M, Illinois - 8/20/2018
Worked great, totally pleased, fast shipping.
Jerry H, Oxford Al - 3/27/2018
As I said in my title good stuff I guess it is here I am back again.
John, Massachusetts - 10/1/2017
Joseph, Florida - 7/12/2017
Drilling Holes in Silicone Rubber Stoppers
How easy it is to drill holes in the Silicone Rubber Stoppers? if yes what type of drill bit do you need?
RaulC, San Antonio, TX - 4/26/2017
Perfect fit for my need
I bought a #3 and #4 size into which I wanted to install a 1/2" OD stainless steel dip tube for my beer brewing kettle, which has a welded outlet. I made a slightly smaller than 1/2" hole with a cork hole borer. The cut was clean and the dip tub fit perfectly in each. The two stoppers both fit into the hole in my kettle, just with differing depths of insertion. The seal is good and should work well to hold the dip tube rotated into the correct position.
Jeff D, Minnesota - 8/4/2016
The stoppers I purchased and received were advertised as being the correct size for plugging beer and wine bottles. Unfortunately for me they were not, as they are too large in diameter. I was forced to go out and buy a couple of inferior quality stoppers at the local Target at a cost of six dollars. I must now go through the trouble of returning the three one inch stoppers I purchased for a refund.
[From WIDGETCO: Sorry, but we could not find where this item was advertised as fitting a beer bottle. If you are aware of such an advertisement, please email us so we can research it further. Thank you for the feedback.]
Dave M., Waterbury, CT - 10/13/2015
Will order again
Product was as described and delivery was quick. Had no issues and will order from WIDGETCO again.
DAVID P., Dallas, TX - 8/13/2015
Perfect for my problem!
I used this product to plug the towel bar holes in a fiberglass tub unit, after the bar broke and I was not able to get ANY replacement parts. The stoppers fit the diameter perfectly. Looks like it was manufactured with these. My order arrived very quickly. Thanks.
Karen M, Cleveland, OH - 3/1/2015
These are perfect for the bottles I am using for bath oil in the gift set that I make. I will definitely be ordering more.
Pat W., Hampton, VA. - 10/30/2014
Purchased the #4 white silicone rubber stoppers to use in a vintage set of salt and pepper shakers. Perfect! Fast delivery and appropriate packaging.
Pam L., Fort Myers, FL - 8/27/2014
Great product and great service. WIDGETCO is my first choice for rubber stoopers.
F H, Albuquerque, NM - 8/16/2014
I ordered #4 white silicone rubber stoppers; it was easy to place the order, delivered as promised, good quality, and reasonable price. This is my second time ordering from WIDGETCO and it will not be the last one.
Jose L, Englewood, CO - 7/17/2014
All of the stoppers I have ordered have been of the highest quality with fast delivery and good prices.
The silicone stoppers in particular work very nicely even at very cold temperatures.
Any chance of silicone stoppers being offered with holes?
[From WIDGETCO: Nothing planned as yet but we are always working to improve our product lines. This is a suggestion we will certainly consider. Thank you!]
Don M., Mayne Island, BC - 2/1/2014
These work great for a Longworth chuck.
Dan S, Solon, IA - 1/8/2014
White silicone rubber stoppers
This was an extremely satisfying experience. The stoppers were perfect and they were shipped very fast.
Pam S, Afton, NY - 6/26/2013
I had a great buying experience with WidgetCo. Great communication, great product, fast shipping, great prices. Will do business with anytime!
Aaron G., Ohio - 1/5/2013
Super Fast Shipping
Fast shipping and product exactly as described.
Kim J, Calais, ME - 12/19/2012
#4 White Silicone Rubber Stoppers
Quick and easy !!!!
JZ, Buckley - 9/30/2012
Widgets are great..
Except for carbonated beverage bottles.. It popped off the soda bottle and ricocheted around the kitchen,, it was a riot!