Solid #4 Rubber Stoppers are Tapered Size #4 Rubber Stoppers that will plug bottles, lab vials and other openings. #4 Rubber Stoppers are manufactured from EPDM Rubber. Not for food applications (see silicone rubber stoppers)
Well made fits my flask perfectly
Jeff L, USA - 5/17/2020
Great quality - and FAST shipper!!!
Fill P, USA - 4/24/2020
Perfect fit and excellent quality. We will be ordering again. Shipping time was fast.
Mark A., Illinois - 4/10/2020
Fine Rubber Stoppers - One piece Orders Available
WidgetCo allows one piece orders through their system; this is getting harder and harder to find. Very nice option for private use of materials instead of treating all Customers like a manufacturing plant.
John T, Guam - 2/20/2020
Exactly what I wanted
The stoppers were exactly as advertised and what I expected and delivery within the promised time period.
Richard B, Ontario, Canada - 10/24/2019
#4 rubber stoppers
Shipped fast, just what I wanted, very pleased
Jerry R, California - 8/21/2019
Excellent product, well made and strong
These stoppers are 100% the best in the business. Very Strong and High Quality. I will buy these again from WidgetCo anytime.
Gary B., Virginia - 5/29/2019
Mike, New Jersey - 3/20/2019
Exactly what I needed and promptly delivered.
Carol S, Florida - 11/7/2018
Exactly what I needed
Perfect item easily found. Great selection of items and I will surely be using WIDGETCO often
Dominic L., New Jersey - 1/29/2017
Fast Shipping, Great Product.
James O., Louisiana - 6/9/2016
Good product - exactly what I needed.
Roger Jones, Columbus, OH - 4/5/2016
Super quick delivery, less than half the "big box" price, excellent quality. Thank you.
Melissa C, Arkansas - 9/7/2015
Excellent Company Service
USPS lost my order so WIDGETCO, sent a replace order out right away, no questions asked. Excellent.
Edward L, Mountain View, CA - 8/10/2015
Well made product. Sizing is accurate and shipping was fast. Recommended.
Joe R, Boston, MA - 7/13/2015
Rubber stopper — #4 size
I ordered a #4 rubber stopper. When it arrived, I measured it carefully, and indeed it was a #4 rubber stopper. Is this a great country or what!
Doug F., Atlanta, GA - 2/4/2015
#4 Rubber Stoppers
I got these as a replacement stopper for an old Swiss M32 canteen to replace the old, moldy cork stopper. Fits perfect and works great. Great service and fast shipping. Glad I found your site.
Russ M, Lake Charles, LA - 10/5/2014
Wonderful fast service
Just what I needed and here fast!
TED, Ohio - 7/25/2014
They're all good
Quality of the stoppers is good, and they arrived without a hitch within the time specified for standard shipping.
Carroll W, California - 2/26/2014
Fast shipping!! Packed like a champ!! Quality product!!
Jamie W, Centerville oh - 9/18/2013
Fast shipping and a fair price.
Jamie W, Centerville, OH - 9/11/2013
The stoppers were fine and were received quickly. I need to order a larger size. Thanks
Wayne Q, Tallahassee, FL - 9/3/2012
I was very pleased with the quick response in which I received my order. Thank you.